Mx Road Part1

(1)

(2)

l \ ---)

o

c)

u

o

c.)

C.

( :

(3)

( (

(

MX -

Road

Design

(

_{Bentley MXROAD V8i(SELECTseries 2)}

(

Bentley Institute Course Guide

I ' ( ' ~ ' \...

'-

( .

C

B

!

tley Institute

l

l.

l

'

( C

"

l

TRN011140-Qj0004

l

·

(4)

Trademarks

the uB" Bentley logo, MDL, MicroStation and SmartLine are registered tradema rks; SELECT is a service mark of Bentley

AutoCAD is a "<>a.e1"<>"<>"; trademark of Inc.

All other brands and product names are the trademarks oftheir respective owners.

Patents

United States Patent Nos. 5,8.15,415 and and

Copyrights

ntley Institute

(5)

./

\

3

(6)

(

.

T

able of

_

-

_

...

_

...._._-- - -_...

Course Timetable

• Day 1

- Basic concepts of MX and getting started

-- Importing and displaying the survey _. Checking and amending the survey

- CAD environment tools - Essential housekeeping • Day 2

-- MXROAD - horizontal and vertical alignment design

- Generating the road features

- Applying superelevation to the carriageway edges

- Reporting string and model data

- Forming junctions and traffic islands

• Day 3

- Shoulders footways and verges v?

- Earthworks design _...y" "

- Pavement Layer Design ,./' - Create Cross sections,"'/

- Drawing production

1. The course consists of a series of lectures followed by practical workshops using a simple highway design to introduce the functions required for a typical design sequence.

2. The above timetable is very general and is for guidance only .

.

'

3. To use all the options contained in this course you will need to have installed MX V8i or later and the associated Data Set.

"

.

5

(8)

I

II-f-"~~~---"---·---·-··-·---j

Basic Concepts

What is MX?

• A system for the collection, generation, analysis and display of three dimensional data

• Used from feasibility study through to final setting out

• All data are stored in the MX database

1. MX software was originally developed in the late 1970's by three local authorities in the United Kingdom. It was known as MOSS until 1998, when it was renamed MX. In January 2003 Infrasoft Limited merged with Bentley Systems Limited.

2. Originally used in the design of highways schemes, MX software is now used in a wide variety of projects, such as mining, golf course design and air traffic control.

6

(9)

(

( \

(

,-1--- - - --'---I ..... - -...- - -- -. -...- - - ---.--....-.. 

Basic Concepts

surfaces

• 3D surfaces stored as models in MX database • Each model has a model name

- 28 characters maximum

• in range 0 to 9, A to Z and space only

- Unique in database

• One model per surface, such as

- Existing ground (the survey)

- Design

- Contours - through the surveyor design

- Long and Cross sections

• No practical limit on number of models

- -.. - ..- - _...

-models

1. Each model has a 28 character model name, with a possible 4 character extension defined by MX. This extension describes the model type, such as 'TRIA' to describe a triangulation model

2. The model name should reflect the contents of the model, for example

'EXISTII\IG GROUND' instead of 'MODEL 1 '. Note that spaces are allowed but

not hyphens, full stops etc.

3. A separate directory is set up for each project so that the database and any files associated with the project are stored together. This helps with general file and project management.

7

(10)

J

....--..·--...--·..·-· ..· · --· ··-- - -

II+---~~"""""---· ..- - - · ---..- - -- · .--.----. - - --1

Basic Concepts

surface features-strings

• Surface features and breaklines stored as strings • Each string has string name which is

- 4 characters long - alphanumeric

- User-defined in both the survey and in the design

• Strings are lists of pOints - surveyed, designed or from analysis

• Frequency of pOints is user-dependant

- To ensure good resolution in survey

- Defined by chainage interval in design

1. The name that is given to a string gives an indication of the feature being modelled. For example, in the diagram above, the string 'ev2i' is the right hand verge.

2. MX uses a default naming convention which starts at '0000' and ends at 'ZZZZ'.

3. While the naming convention used in MX is entirely up to the user, the following restrictions apply:

a. master alignments must have an initial character M b. geometry strings must have an initial character G

c. point strings, which have no string links, must have an initial character P

d. text strings must have an initial character ,*, (Text strings do not have a level. They

are only used to hold annotation text in modelspace.)

4. All strings in a model must be uniquely named, but the same string name can be used

in different models.

5. The frequency of points along the string is dependent on the user. If the feature being

surveyed or designed has many changes (either horizontally or vertically), it should have more points than a uniform feature. MX will add extra points to the design strings in areas where the curvature increases to ensure sufficient resolution to the strings

8

(11)

I

+____-"_ _ _ - 1 _ _ __ _._ _..._ _. _ _ __ ._ __ _ _ _..._~._ __ _._ __ _. _ _ _

Basic

Concepts

stri

.

9 featu res

• A string is a list of point coordinates - A string starts with the String Index Record

- This includes name, sub reference, type, no. points, min X-V, max X-V

• Strings can also contain

- Links - the connections - Gaps (discontinuities) - Null levels (z

=

-999) 1 2 3 4 5 541016.325 111060.659 541023.195 111059.221 541030.002 111059.010 541037.330 111060.832 541044.849 111061.547 ., Gap •.~ 51.291 51.797 52.277 -999.000 53.552 6 7 541052.006 111063.728 54.218 541059.839 111064.296 54.762 and so on 6 7 8 2 3 4

-9 5~~ • • •

--

_• _• • _• _• _•

"P" string - gaps between each point

1. All points on a string are joined by links, unless a "gap" (discontinuity) is inserted into the string. Discontinuities are visible both on a drawing and in printed reports. A discontinuity is basically a missing link in the string, ego a gap in a surveyed fence.

2. A point string is a special case in that there are no links between the points. An initial character of 'P' indicates a point string. Used for features such as trees or lighting columns.

3. A null level at a point means that the point does not have a level associated with it. The Z value is

given as -999.0. These points are ignored by functions such as sectioning.

4. Each item of information related to a point is referred to as a dimension. The number of dimensions stored on a string depends on the string type. The point numbers are added by MX and are not a string dimension. A selection of string types is shown below:

String type No. of dimensions

Contours 2 X Y

General features 3 X Y Z

Survey stations 4 X Y Z StationlD

Master alignments 6 X Y Z Chainage Bearing Radius

A model will consist of a combination of string types, each string defining a separate feature.

9

(12)

I

IH-- - - - -- ' - - - -- ·-- - · - - - -- -···-- - -- -- - - -- --I.

Basic Concepts

coordinates and units

• Cartesian coordinate system - X Easting

- Y Northing

- Z Level (-999.0

=

null level)

• Metres or feet

• Angular measurement

- DMS (default) Degr Grad Radian Quadrant

• Zero datum is grid North

1. MX is actually unitless for the storage of data, but you need to set the units so that the correct values for areas, volumes, angles and so on are correctly reported.

2. Angular units can be input and output in different forms but are stored internally as radians.

3. The system is supplied with defaults for all the above set in a parameter file. This file can be amended by you to reflect local requirements. There are special settings for use in the USA, Denmark, and Czech Republic which can be adapted for use in other regions of the world. If you have any problems with coordinate systems for a particular country please contact the Bentley Support Desk who will be pleased to assist where possible.

10

(13)

11-+_ _ _ _ _ 10-,'_ .,- -..- - , - -..- ---~---.. - .... - . - - -.- - ..

Basic Concepts

three essential files

• These files should not be removed from the project directory

- model.fil - the database

• holds the project design and survey model information

- "projectname".mmd the project file

• holds project parameters, library locations etc.

- defmods.txt - the associations file

• holds model types and model-styleset/featureset associations

1. The MX database has the filename MODEL.FIL. This is the file which

contains the models, strings and points. Therefore, this is the most important file in a project. Note that the MX database contains only the coordinate information of the strings and points. It does not contain any information on the colour or linestyles of the strings.

2. The .mmd file contains the project parameters. These can be modified

by you on entry to the project..

3. Each default model type has a feature name set and a plan style set

associated with it. The models that are created during a project will also be related to feature and style sets by you. These associations are stored in the defmods.txt file. This is a text file which MX updates dynamically as required.

4. The .mmd file and the defmods.txt files could (but shouldn't) be removed from the project directory without any loss of model data. However, a new project (.mmd file) would need to be started using the existing MX database, the project parameters would need to be reset and any associations remade.

11

(14)

(

- - - - --- - - - -- - -- - - j

Getting Started

Create a New Project

Start Up r1.iE]

• Recommended steps

~Benttey

- Start MXROAD

- Browse to New Project folder

- Type new project name

• check Edit Project Settings to change design parameters (optional)

Bentley

MXROAD

V8i

• check Non -tangential

Alignments if needed

IUK...

I Edlrro;...SolrQl 1_ _ _ ---' I S<n;gH....,,~

1. Project Name - this provides the name of the file used to store the project

settings i.e. the ".mmd" file. The project name is limited to 256 characters.

2. Location - directory used to store the project. This foldermust not be stored in

the 'mfw' folder structure (the MX installation) as the project data will be lost when the next version of the software is installed. The folder will be created if it does not already exist.

3. Note that it is possible to have more than one .mmd file in a project's working directory. This can be done by opening a new project in an existing directory and supplying a new '.mmd' file with a completely new set of parameters. When this happens, the system will ask you whether you want to replace both the existing MX database 'model.fil' and the defaults file 'defmods.txt'. It is very important to select NO , especially for the modelfile, as all the existing coordinate data will be lost if the database is replaced.

4. A Non- Tangential Alignment is an alignment which may contain angles that have

a discontinuous bearing ie. straight to straight connections. This option can only be invoked for a New Project.

5. String Naming Convention is essential for MROAD projects.

12

(15)

II+~---'---··---··· -··---

---Getting Started

• Recommended steps

- Start MXROAD

- Select project from list or

- Select more to browse and

then open the .mmd file

- Use the browse button to

select the Current Drawing

Name to be opened

Check Edit Project Settings to

change current parameters

Open existing project

Start Up _ _ _ - _- _ - ~

g:j Bentley

1. There are three methods of starting MX.

a. From the start bar, select Starl Menu> Programs> Bentley> MX b. Double clicking a shortcut on the desktop

c. Double clicking the project '.mmd' file in Windows ExplorerTM

2. The same methods work for the AutoCAD and MicroStation environments.

3. When opening an existing project, the last four projects are listed in the Last Used Projects window. If the required project is not listed, double click on more to get a standard Windows browser to search for the relevant file - only .mmd files will be offered.

13

(16)

I ._---- - - ---- --- ..--...- - - - -.--

Getting Started

Set

project parameters

-'<ri l _ f _ v... I _ l v - . l 1'_( .. 'r.~I-j~,I"...,.I"- ,, , , , 1 _ 1 Arf'~V"" _I_.., I v.,,;

1-""

I_~ -I p",~ [ lc.Mow-I 9s!fl51 ftu?rn

I

t _ I I " u...F"'I""_~

_

r

..

I

-

"""

1 ·.... - Ok 1 1

_""'"

-Flo'... lboow. !!<dF B,"",~

"""'"

_~

_....

-

_£000< C.~_IIl...,...,...,w.

-

w

w..

.

..,p

_

. . . c.IIW;J.arJIIJ1ta\e~ ~"""~ ...so. C"IW;r. .fIN\B.~

Cc\l1og_rw.B~_

-

...

_~_=~~

""'~-~ C.~~tl ~r _ _ ... U. .1j"

;:~ c..~~N~lJ*tl.

~ c.V'Ic,.c.II·J"·,'Jl...(U~ItIIIIIIU... ff..

I

paths set automatically ...

I

~ [ r Iu.tP~u. NuN:i4I 01 LnM pt( p~ [ 1111 ₁₁ ~-... fD.'lA:1Uud"'~ 3 t. . . .,.aoI-P<W9J' 1I"lO ~ _o._~ 1"1lll 3 ..., ,:....-o~

I

1. If the Edit Project Settings box was selected on the Startup panel, this panel will be displayed. It contains all the parameters that you can set for this particular project.

2_ The paths to the various libraries are set at startup to point to the central "Public" library, and to the project directory for the "Project" and "Private" libraries.

Caution -take care if changing items on Project Files tab

14

(17)

I ..._

Getting Started

Working environments

•

Available working environments for MXROAD include:

- CAD, MicroStation, and AutoCAD

•

You can access all standard functions through the menu

bar and tool bars in each of the environments

•

CAD tools assist in the creation of simple to complex

design projects

1. Each environment is invoked from a different icon on the desktop or from the Start menu by using the following:

Start Menu> Programs> Bentley> MX> and then selecting the required environment icon

15

(18)

I

11-+'=---""'-=="'---'-"..."""--- -·--- ···--·---- - - - -- -·- - -- - - - · -- - · - -- - ·

Lab

Getting Started - New Project

• Start MX and select New Project>

- enter project name - up to 256 characters permitted

- use the Browse button and find the training directory specified

by your trainer.

-- in the Location box it should say <drive name>:\Projects\MX Training

• Change the Default Project Setting to Tutorial

• Select Edit Project Settings>, and OK >

• Leave String Naming Convention on

• Amend project parameters to

- turn banner output off - turn paging off

- set default scale

=

1: 500

• Move the mouse over the menu headings to see what is available in each

I

16

(19)

I

I --._._--_...__..._- ----_.. ...•.._ - --_.

Survey input and validation

•

General procedure

.< _{Input the survey data into the database}

- Draw the survey onto screen

-

.

l'1odify the model to correct obvious errors (optional)

- Triangulate and contour to check for level errors

1. After loading the raw survey data, the first thing that is normally done is to draw the survey in plan. This allows the user to check for obvious errors in the survey, such as hedges crossing a road, rogue points and so on.

2. If there are such obvious errors, they would need to be corrected, by amending the offending strings or points in the model.

3. To check for any rogue levels in the survey, contours of the survey model would be generated. Any errors would once again be corrected, and the model re triangulated and re-contoured.

4. You should remember that by adjusting the model you are not adjusting the originating data. Also, you should consider whether it is your responsibility to make the corrections or whether it should be returned to the survey contractor for correction.

17

(20)

II-+---'I~_____--- - - - -- -- -- - - - --- - - --

Survey input

GENIO data

• Survey data may come from a number of sources

- Several data types possible - DWG, DGN, DXF, GENIO , NTF and LandXML

• GENIO is MX standard method of data transfer - may be fixed-format or comma-separated format • Data in ASCII files - similar to this

CREATE,EXISTING GROUND Creates iJ new, empty model to store the new strings will not replace existing model

GENIO,EXISTlNG GROUND Import or export (rom this model

Ol7,NORM

001,FORMAT(2Fl0.3,F8.3,2F10.3,F8.3) The datil 15 In these groups of columns

003,ORDR 2 1 ;2. 3 ..and the d,lta is to be stored in this order

080,8D04, ,5= .0, .0, 7703 Lo.d a string called BD04 a5 a 3-D 5trlng036934.215

11790.875 294.056 36914.540 11783.620 293.778 .,;tnd here arc the f/,.,;t points 036895.538

11778.423 293.775 36881.586 11773.254 293.778

036876.935 11771.532 293.778 .000 .000 293.778 .000 .000 says "end of

this string'"

and so on

1. The directory in which you will be working should contain some start-up files (suffix .txt). These are GENIO files and will be used to generate the initial models used during this course. If these files are missing please advise the instructor who will install them for you.

2. GENIO files are text files and are the standard method of transferring data to and from MX projects.

3. The data shown above is an example of the usual type of survey data that is be read into the MX database. When this file is run, the following will occur:

a. Create a model called 'Existing Ground' - error will be given if model already exists.

b. Specify the model name into which the data are to be placed i.e. GENIO,EXISTING GROUND

c. Define the format in which the data is to be read d. Deline the name of the string to be input - 8004 e. Give the coordinates for the points

f. and so on

4. NOTE: If the first line that is read in a genio file is GENIO,'MODELNAME' and the model already exists, then the string data will be APPENDED to the model - so

take care !!

18

(21)

- -_._- _ ._-_.._.._--_._..

_

-

_.

Survey input

loading survey data

(

• Use either File > Input or File > Import to select

required file ti';n - _ _ _ ~ _ _ _ _ -__ - --':-F1J0 a~ 1.... ~ ~ 'rJOIdNtA It,In Q dol_ .l>t (i)~OU,TXT !!!>w Flon Ois<>by ... ~WJJby;o.-~... lWJt .. .

l

m.t...

COIWttI to K<ROAl) SI-/C...

Expotl

Check "Files of type" if you can't see your file

1. Input files conventionally have the default extension '.inp'. The dialog box shown above allows the user to navigate to the required directory to find the file to be

\

input or imported.

2. Files with any other extension can be found and accessed by using the "Files of type" dialogue.

19

(22)

(

I

11-+-...= ' -...-==-=='-- ·---- - -- - - - -- - - --...- -- - - 1

String names and drawing styles

• Feature Name Sets

-. offer string names by type of feature

- control use of string types throughout MX

- provide layer/level names in AutoCAD/MicroStation

environments

• Drawings produced by Plan Style Sets which

- define the drawing style of the various model types

~ ensure consistent style of presentation ("office standards")

- rely on using standard naming conventions

Hint: You should relate each model to suitable style and feature set at the earliest opportunity

1. Feature name sets help you to name strings when creating new features. They also encourage a consistent office standard to string naming. However, you still have final control of the string name used, unless the MX String Naming

Convention is turned on, or the application has specific naming requirements.

2. Feature Name Set provides the names of the MX-related layers/levels, thereby

providing a two-way transfer between MX and the drafting system.

3. Plan style sets are used to define the style in which the strings should be displayed. They specify details of the colour and line style of the strings, fonts and general symbology. This ensures that as strings are added to a model, or changes are made, they are drawn in a consistent manner every time.

4. Every model should be related to appropriate style- and feature sets at the earliest opportunity.

20

(23)

Survey Input

setting model defaults

• Use Tools > Model Defaults

- Assign the Feature and Plan Style sets to be associated with each model

- Select Edit> to amend if necessary

Browse to

-..--- - ----~ - - -

~-..----;Modcl DetlluU, :....:._.-.-. ~

_.-=- --..

...!(1]~ activate style set selection

O~

21

(24)

(

1+

-1 - - - ' -- - - -- - - · · - - · .... - - - - - -._._--- -

-Survey Input

setting model defaults

• Style set selection - Select library

- Select style or feature set - Click Open>

1. The style set selector will, by default, take you to the "Public" library. You can select the style set from other libraries as necessary.

22

(25)

Ii-f-"-- -- """""--'- - - - -..--..- - . - - -- - -- - -..--...-- -- . - - -- ..- ...-.---

Survey Input

setting model defaults

in any model name box.. right mouse button (RMB)

~

.,

ModeJ~

rmq

m? WC<m<J~ 1rf,J- -- - - ---I ., AI ~ Slri"g Name _ Effiaoce

I

11 Ora.'rw,je WAla~tloo

Triangle r:7.":;:;:::'--;--...,..."..,,~----.I

~

J

select

S~Sel Name _Sb'i'lQ

I pu!i;S~\mf1'l ~ ~. pt

Cut Copy

Rellrict Alea... p~ste

locked by default..

1. This technique of selecting Edit Model Defaults with the right mouse button (in the model name box) can be used with any data panel. Generally, however, it is used when first displaying the model

2. When you relate models to style and feature sets MX writes the relevant information to the file defmods.txt. Then, whenever MX displays anything from this model it looks at the defined style set to acquire the required style.

23

(26)

Survey Input

displaying the model

• Select Display> Plan with Style Set

Model N""", I~ S~~N""'" AI Sde

I

1 ,

OJ

SI~SetNome

IPtAlkS lyleoWw Wnp!e ....vey,p$$

OK

.=J _AW_l

Cancel

:J

OK -runs the data and removes panel from screen

Apply -runs the data, leave.s panel for re-use

Cancel-closes panel without running data

all strings covered by style set

p Display lll Strilg. ---~----I-- all other strings

R.e:t~icl AIea... God.•

1. The ???? in the string name box say "display all strings covered by the style set instructions" .

2. The Display All strings checkbox causes IVIX to display all strings even though there may be no drawing instructions. In this case the strings will be drawn in grey with solid lines. You will, at least, know that they exist.

24

(27)

Survey Input

displaying he model

• Hiding or Deleting MX graphical elements

.- View > Show/Hide graphics> Hide/Delete from Graphics

• Hide Graphics or Delete Graphics

• Identify Model, Group or Element to be used

_N_

define model/string(s) - use pull downs or select from screen

1"<$101' ::;} _{or use descriptions}

o...n • 3

ro;;;.--~----=j:!l

1. Used to change the contents of the display

a. Hide Graphics - is used to make parts of the display invisible.

b. Delete Graphics - removes the items from the display. Deleting items from

the display does I\IOT affect the model file.

2. In tl1e above example, all the spot levels will be made invisible. The strings are selected by typing the characters required (L ???) or by selecting the feature type.

3. To hide or delete all items of the same type - select them as a Group. This makes showing hidden data faster as MX treats them as a single item rather than individual ones.

25

(28)

(

I

II~---'---·----·---·-·-·---···---I

Lab Survey Data Input

• File> Input> the file survey data. txt

• Display> Plan with Style set> Survey Model

- use a scale of 1: 500

- set the style set and feature set to MfW simple survey.pss and MfW simple survey.fns

• Open a Windows Explorer™ and look at the project

Defmods.txt file/ note the Survey Model style set/feature set association has been written to this file.

1. Notice how the use of a style set has produced a good working drawing with various colours and styles of interpretation utilised. As new strings are added to the model, they will be automatically drawn with the correct interpretation.

2. Windows ExplorerTM is a useful tool for reviewing project data

26

(29)

+ - - - ---'-

I

.- - - _...__ . _-- - -- - -_._- -- --_.._ -_ .._-_...

Lab Survey Data Input

• Hide the spot levels (use element and description) and Show them again

• Hide them again, using group

• Show the group - note the difference in speed

• Delete all spot levels from the picture

27

(30)

CAD Environment

CAD Attributes CAD Level Manager

MX menu

CAD main toolbox

Tasks toolbox

1. CAD toolboxes are loaded by default.

2. The CAD toolboxes are Main, Level Manager, Attributes and View Groups.

3. MX has new MX Display, MX Controls, MX Conversion and View Control

toolbars.

4. The menu can be switched between MX and CAD by selecting CAD and then CAD Menu.

28

(31)

View Controls

• View Controls in MX

1

diSPI!Y mode view attributes update view zoom in zoom out window area fit view rotate view pan view

.

_{change rotation}

t

1

clip volume view next view previous

1. The View Control is only visible in MX and MX in MicroStation. It appears by default at the top of each view. It contains a number of icons which perform the following

functions in the current viewport, hereafter called view.

2. View Attributes. Used to select, control and change the type of elements and graphic attributes in the information displayed in the view.

3. Display Mode. Set the view display mode from the drop-down list of display styles or from the Display Styles dialog.

4. Update View. Update (redraw) a view(s). 5. Zoom In. Increase the magnification of a view.

6. Zoom Out. Decrease the magnification of a view.

7. Window Area. Use to magnify an area of the display, in the selected view.

8. Fit View. Used to fit the entire display in a view. Further specific options are available: 9. View Rotation. Used to rotate the display in a view. Select from Top View or one of the

other nine variations of rotation available from the fly-out tool bar.

10. Pan view. Used to move (pan) the display without changing the view magnification. Move the display under the cursor by holding the left mouse button down and moving the cursor around the screen.

11. View Previous. Cancels the last view control operation and returns you to the previous view.

12. View Next. Applies the last undone view control operation. 13. Change Rotation. (3D view only) Change the rotation of a view.

14. Clip Volume. Clips a view so no elements outside a defined boundary are visible. 29

(32)

..._ --- _ .

CAD Environment

• CAD Tools

Models

References Element Information

Level Manager Level Display

Active Level

Active Color: 0 Active Line Weight: 0 Active Line Style: 0

1. Primary Tools

a. The Models dialog manages models

b. The References dialog attaches and detaches referenced models, adjusts reference settings and select reference tools.

c. The Level Manager includes a list of models, levels, and filters on the left, and a detail section on the right.

d. Select multiple design files and/or reference attachments from the tree by holding the left mouse button down and dragging the cursor over the desired files. The levels for all the selected files display in the level list.

e. The Level Display turns levels on and off.

f. Element Information displays element information, such as its type,

attributes, and geometry, and permits modification g. Toggle AccuDraw facilitates data point entry

h. Toggles PopSet Enable/Disable, prevents the display of a Tool Settings window while you are not adjusting its controls.

2. Attributes Toolbox

a. The Attributes dialog sets the properties of an element and applies them to a new element or one or more existing elements.

30

(33)

CAD Environment

• CAD Tools

View Groups View Group

or- MX Defaull View

Manage View Groups 8 views

Place Fence Modify:

Manipulate: Groups:

View Control: Change Attributes:

1. View Groups

a. A view group is a named collection of eight view windows which allows you to set up your desktop to display your preferences including number of open view windows, window size and view orientation. Each view group is associated with a model making it easy to access and navigate through different models in the active OGN file, via the View Group menu. b. Where, during a design session, you activate models in more than one OGN file, you can

also use the View Groups window to easily navigate the current session's model history in

multiple files. That is, you can switch between models you have activated, regardless of the

files in which those models reside. 2. Main Toolbox

a. Element Selection selects and deselects elements.

b. Place Fence, places a rectangular shape around objects.

c. The tools in the Manipulate tool box are used to copy, move, resize, rotate, mirror, create arrays, align and stretch elements

d. The View Control tool box contains tools for manipulating views in the active OGN file. Tools that are 3D specific are disabled when working in a 20 model.

e. The tools in the Change Attributes tool box are used to change an element to the active element attribute settings.

f. The tools in the Groups tool box are used to create and manipulate complex chains, complex shapes, and graphic groups

g. The tools in the Modify tool box are used to modify element geometry

31

(34)

CAD Environment

• MX Toolbars _{Display plan} _{Erase model}

with style set

Multiple models panel IOESIGN S51

Model _{Erase the drawing} _{Display current} _{Create drawing from}

then display the model over saved display set

model display

MXlCAD focus MX Output Window

1

Single/multi pick PSM selection

1. MX Model Display toolbar

a. Model - Selects the model to display from the list of the available model names.

b. Erase the drawing then display the model - Deletes all the MX elements are delete from the

current drawing and the selected model redisplayed.

c. Display the current model over this drawing - Redraws the current model.

d. Erase the current model - Deletes the selected model will be from the current display.

e. Create a drawing from a saved Display set -Displays the Create a drawing from a saved

Display set panel.

f. Open the Multi Model panel - Opens the Multiple Models panel to allow selection of more

than one model to display.

2. MX Controls toolbar

a. MX / CAD focus - Indicates which program currently has focus, either MX or CAD. Toggle the box to override the setting if you wish to use CAD commands when you are in the middle of an MX option and vice-versa.

b. MX Key-ins - contains a list of commonly used MX key-ins.

c. PSM Pick Mode - Select either Single Pick or MUlti-Pick.

d. PSM Lock Mode

e. MX Output Window - check to display the MX Output Window.

f. Information - click to display the current System Parameters. You can modify the System

Parameters using the fields and controls available.

g. Cursor Coordinates - displays a continuous scrolling current cursor location in MX model

coordinates.

32

(35)

/ - - - ---'-_ ._ -- -- - - - _..._._...

_

._ .._--- - - - - -_.._--- - _.

CAD Environment

• MX Toolbars - multiple models panel

~~ .lII!;;}-'J) t:{

UO E5lGII 5SI :::J ill" _iiJ ~ ~[<?] _{Create a new}

-

..

"""-1...,."",,,1 I M_ _ O. . . I 1.1.. -;11,, :.! )< $ ,4a. _I s ...

...

O DE9GII I I I~ O E»S1l1ffi TRIA 2 _C"l" 0 = 17:).:.2 12:J!lJ)

~

Select models to display s.,..St< I II a... _i_l - 

I

il~J:t63! I

I

iI

..., Sa dra ve plan wing as a display set Copy Paste Create new model Delete model from model file

1. Multiple Models

This option requires that models are selected on the checkbox to the left of each model name. Highlighted means that the model name is displayed on a highlighted background, note that the CTRL key can be used to highlight more than one model name.

a. Save - Creates a Display Set that can be recalled.

b. Create a New Plan Drawing from a saved Display Set - Select a saved Display Set to

create a new plan drawing.

c. Erase the Plan Drawing then display the selected MX Model(s) - Check to display a model, the drawing is updated immediately. Uncheck a model to remove it from the drawing.

d. Display the selected MX Model(s) over the current plan drawing - Permanently greyed.

Only available on the MX Model Display toolbar.

e. Erase the selected MX Models from the plan drawing - Click to erase the selected models

from the plan drawing.

f. Delete the selected MX Models from the model file - Click to delete the selected models

from the model file.

g. Create a New Empty Model- Click to create a new empty MX model. The new model will

be named NEW MODEL 0, where

°

is incremented each time a new model is created.

h. Copy Selected Models -Click to copy the highlighted models.

i. Paste Copied Models -Click to paste copied models. l\Jote that models will be pasted with

numerical suffix which increments as each paste is made.

2. Note: Right hand mouse button selection permits the following functions; New Model, Delete Model, Copy Model, Paste Model and Edit Model Defaults. You can also rename a model by highlighting it and reciicking.

33

(36)

CAD Environment

• MX Toolbars

ldo,ign

D. ...jS..c - . Select display

IcIoo,7>...t·...

~o ,-.,~tI~-~_ _~==--n-- set name, comment

1- drawing name and

s_

f,i!! _.:oJ scale

Oer..te Al

D"PorS.. O...

0....,,5<\11_

OK

1. This panel allows you to create and save one or more Display Sets that can be recalled quickly and efficiently in the future.

2. A Display Set is a drawing (dgn or dpw) comprising one or more models at a specified scale.

a. Display Set Name -Type or select from the list the name of the Display Set

to save.

b. Display Set Comment - Type a comment to aid your memory when you

recall this Display Set.

c. Drawing Name  The name of the drawing *.dgn.

d. Scale - Type the scale of select it from the list.

e. Delete - Delete the current Display Set from the list.

f. Delete All -Delete all the Display Sets from the list.

g. Cancel - Cancel the option to save the Display Set.

h. OK -Click to save the Display Set..

3. You will be warned if you attempt to overwrite an existing Display Set, and asked

if you wish to continue.

34

(37)

-- - --_..._ - - _._.

_

.._ - - - _...

_

..

CAD Environment

• MX tool bars

- View > Too/bars> Design

RM B on toolbar to access list of options

Select to customise

HorizooI:~ Offset

String Extension of Crossfall InI:erse<tjon of 2 Slopes Hard Shoulder Design

Subgrade Desi9n

DesIgn <!I Straight

DesiQO an Arc

ShgIe.Arc between 2 StrincJs

Compound Arc between 2 5t'r'ingos

Show 8.1

L.lst...

Note:- Any tool bar can be customised

1. Toolbars can be customised by removing any of the standard features.

2. To adjust content of a toolbar, set CAD focus, click on the toolbar with the right mouse button then select or deselect options.

35

(38)

II-F-=--- ----L--- -- - -- - - - -- - -

CAD Environment

• CAD

CAD Environmen

'

• MX menu

- Creating AutoCAD Drawings

~~dt E!emer~ ~ 1001> ~ tie<" '" : I Qpen .. . !:,iose Save as... ( O(!p"<!<S - -I

"

,L

I

s"C!,<' SettflQs_ _ _ _ 1 ., I ~ ltem~r _....

~ Proje<t E><p!on!r

A

..iJ

Re(,er""".s • R..<le:'~

!

I

GJ Mod<\<

r . ~i-modef... save as AutoCAD DWG

.

\

• OGrl OWG OlCF...

1. The type of CAD drawing can be selected from the Save as type list.

2. The following slides show the current MX drawing saved as an AutoCAD DWG,

and the AutoCAD version selected.

3. MX will create separate 3D and 20 AutoCAO OWG's automatically.

37

(40)

--I

CAD

Environment

• MX

f

....

·o...>

C;~NbfI'e r"",cO:D D~Flo.r"~1 -- v

~M"'<>S'oIionVll OGti ~t!r<>.n r.fiaoSl~V70GHF C-m)

I

.

..

~IR_lr"l _t_llt~ Ij PI_ ~ . 0 - :wt ,

....

-

_~

.

₌

-'.

...

....'_"-_""""""'1

u lr.'ftI'~o-IdN 0

.

-

0 1IIoOG . . . .

.

-

_..

~ -'-o

-

@l

...

-!>u.~ .c".,._ version of AutoCAD • ·

"""'

'<II< • F'(W' ...,." -4' ,...

-[LJ (c:... , ,. ~

..

,. I I

,

Coned I, l Oplicn> --' . /

.-

I

~.-.

handling of attached references

/

0... 1 i -[- ' - ' - v S"'~I~(tt~w N:nH..AWI:oiWI~--{, ~r.c.I y ~4d~I~ .... eq,..~Ckn,)~ lf~r'lll'\ 4fI !3C\o-'_n.

0---00'.-_

O ₀..._{... _}.,.~...- _{'_} _.... ~ ~ 38

(41)

CAD Environment

References

• References

References _{Attach references}

1. Used to attach and detach referenced models, adjust reference settings and select reference tools. On the Primary Tools toolbox select the References icon.

2. References are previously created drawings that can be attached to the current drawing.

39

(42)

c..-. ~· WClllt -~I.wIdtBI\(_ ~v.... t~ ' I .-J~....ort~ ,_ ~ldl ~~" In: ~<· IDI ~tM..-:fi'; l ~ , ~

CAD Environment

References

• Attach Reference

tt....~~J~ v ~l

o..a.o.-.w. ... ..,

l'I:l.A-otiI~ UMi4s._Iftr:~""

"_ . . -.... 5 _ 'tt- w

f'lito-a ...,.,.",_ _ I !!' I I c-.t

....d~ ,Cf.O rArard:rC"dooc.-dII-I - Os... _ e....

1. Reference Attachment Settings dialog attaches a model (*.dgn) to the active model.

2. Model- Sets the optional description for the model. The maximum valid

description is 40 characters.

3. Orientation - Sets the view of the model being attached.

4. Coincident - Aligns the references with regard to design plane coordinates only. 5. Coincident World - Aligns the references with the active model with regard to

both Global Origin and design plane coordinates.

6. Standard Views - Identifies the views that can be used to display the reference:

Top, Front, Right, Isometric, Bottom, Back, Left, or Right Isometric.

7. Saved Views - Identifies the saved views that are available in the reference. 8. Named Fences - Identifies the named fences that are available in the reference.

When a named fence is used to attach a reference, all levels are on. If a particular level is desired, then use the named fence as a clip volume for a

saved view in the reference, and select the saved view.

9. Scale - Sets the ratio of the master units in the active model to the master units

in the attached model.

40

(43)

II--/-'~_ __ _ _- L _·______ _ _ __

- - -- - ---- - --_.._...

_.

_

-_.

_

.._.

CAD Environment

References

Level Manager

..

_, D o S~. 0, PftQPOS.EOr.QAO • ., J.()Q'WLEKi.IinoO,;a.OO 1"~iotI"""J • • H~ D J F..:... ISec....' r~(oponJ 1 £t~.a.~L 0 -0 Dnign _f~' 0 3 D"'~" .' OS DII.l...s~ 2 D'IIUgn'oM Uftbd... 2 D.,.'" 1 ~~~~ - - a - - 0 - -a - 0 - - a - - 0 - - a - - 0 - 0 - 0 - -a - - 0

--.

RMB click for menu - 0 " - 0 ... - - 0 " - - a ... - - a " - - a " - - 0 " - -a " - - 0 " - - a " - - a " - - a ... - - 0 " - - 0 " - - a " - - 0 "

-

...

-

....""

_..

_~ ~--No

,

-em.

-

~

...

-

_-

-

_-

_""""""'"

-

"""'.,..,.

_....

"" - ,,*,

..

"

..

2 & '0 '0 S>

1. Right click on menu bar and select Transparency.

2. Select one or more transparency values, the right click to modify.

41

(44)

CAD Environment

References

• Transparency Select all layers in

attached reference

Modify transparency value

1. Transparency varies from 0% to 100%. A value of 0% is opaque. A value of 100% is almost completely transparency.

42

(45)

I

Lab

Viewing Model Data

•

Use MX Model Display toolbar to:

- display the survey model

- then erase the survey model and re-display

•

Use View toolbar...

- window by corners, pan, new centre ..

- try other views like isometric

•

Open the Level display and see the levels in the drawing

•

Customise an MX toolbar

-- then reset

43

(46)

- 1 - - - ---"--

1

--- - - - - --- - - -- - - - --- - - - -- --

-Enhanced Menu and GUI changes

• All MX menu options are now replicated and available as MicroStation Tasks and MicroStation toolbars

• This provides the option for fully customisable MX toolbars in the standalone and l'VlicroStation environments using custom DGN libraries

• IVIX menu 'greying' that was previously experienced while in certain wizards / options has been removed

- This change will result in more open workflows in MX

• ability to access MX options whilst in an MX Wizard

• where multiple MX options are fired in quick succession to the MX engine they will be buffered up and run in sequence

• 'Pinning' of menus - floating or pinned (fixed)

1. Enhanced menu's and customisation - Implement MX options as MicroStation tasks

2. All MX menu options are now replicated and available as MicroStation Tasks and MicroStation toolbars. This provides the option for fully customisable MX toolbars in the standalone and MicroStation environments using custom DGNlibs.

3. To facilitate this level of customisation and to generally improve workflows available in MX, the

MX menu 'greying' that was previously experienced while in certain wizards / options has been

removed. This change will result in more open workflows in MX ie ability to run reports is now available while in Quick Horizontal Alignment or a wizard. Where multiple MX options are fired in

quick succession to the MX engine they will be buffered up and run in sequence.

44

(47)

II+ - -=---L-- ---- ·---·-·---- -- --·---..· · - -

Enhanced Menu and GUI changes

• 'Pinning' of menus

select pin icon to activate toggle toggle appears

select MX Output Window

Ia" So~ t ...u,* Jo~ l~ft'''''hlCt.''r. "'-',r, Li~lO

·

; ....ion - 202:" Dlmtlw OS,..".... l~'L.u'MlbtCiD

DlTl 2UIOYO' T[ D '" U

,e select pin to lock open window SRn:T ! QItI'T.l.JNS !H GR.lFHl c..U . ~

AU1'Ct4lfi1\lO:l

put cursor over toggle to activate MX Output Window

1. Menus can be pinned in MX. For example on the drawing frame select MX Output Window., when the output window appears in the display click on the pin icon, top right of MX Output frame and this pins the window to the drawing frame.

2. The output window now appears as a toggle on the drawing frame. Put the mouse cursor over the toggle and the MX Output window appears .. To remove the output window just click anywhere in the display.

3. On the top right of the MX Output window you will see a Pin icon, if you select this pin icon then the window will stay permanently open.

45

(48)

IH- - - -L-- - - -- - - - -- - - -- --- - - - -- - - -

Enhanced Menu and GUI changes

• MX Menu structure on Tasks ...

- Tasks> MXROAD Suite

1. To access the MX menu structure on the tasks toolbar we need to select from the Tasks list icon on the Tasks tool bar, usually located on the left side of the display.

2. On the Tasks icon select the down arrow and from the resultant list pick from Tasks>MXRoad Suite. The MXROAD Suite is now the active menu on the tasks toolbar .

46

(49)

IH - - - - - L---.-...I -...--- -.- - - -. - - ---.-.-- ---..--- -.-..- --- - - ...

-Enhanced Menu and GUI changes

• MXROAD Suite toolbar...

Ell - MX File - MX View -.. MX Tools MX Design - MX Analysis - MX Modify - MX Display - MX Draw - MX Visualisation -- MX Report 47

(50)

Enhanced

· Menu and GUI changes

• MXROAD Suite dialog menu ...

- Tasks menu can appear as a dialog box

• File> CAD Menu> Workspace> Preferences

• On Preferences panel select Task

Navigation and change presentation to >

Dialog ~ MX Anol'l' :SIS

I

MX MOO'!, t:,> MX (.II!>pI4, ,~MXOr'h"

I

'"

V

1. The toolbar view for the Tasks menu can be changed to a dialog view. To do this we need to go to the CAD settings for our MX session.

2. From File> CAD Menu> Workspace> Preferences. The preferences panel appears on the panel select Task Navigation and then Presentation. Change this to Dialog.

48

Bentley Systems, Inc. MX- Road design V8i (SELECTseries 2)

same options as on tool bar just presented differently

this can be pinned as ~

before _os_u_._"_.

[J Ii Report I

- - - - -1

(51)

Enhanced Menu and GUI changes

• IVlXROAD Suite dialog menu ... - Hot keys ...

• to activate hot keys

- set position mapping preferences

• File> CAD Menu> Workspace> Preferences> Position Mapping

- select use position mapping

Q= New Plan display

hot keys

1. Hot keys can be set to access the MX Menu structure in the Tasks Menu. To activate the Hot Keys the user will have to go to the CAD Menu> Workspace> Preferences> Position Mapping. Then select Use Position Mapping.

2. On the Tasks Menu now you will have letters or numbers just select the letter or number on your keyboard and the relevant MX Panel will pop up.

49

(52)

Enhanced Menu and GUI changes

• MXROAD Suite dialog menu ...

- Individual toolbars ...

select and hold on option

dditional functions

50

(53)

I

II-.f-- - - '' - --·-·· - · - -- ·- -- --- - - ·--- -· -- - - ---f

Enhanced Menu and GUI changes

• IV1XROAD Suite dialog menu ...

- Individual toolbars ...

• customize ...

I')

/"

Y

~~

-

RMB on toolbar to access options

.. C...·. ThrulPoW'

~

I

'" 1list"",.o.G<.><Ie lhry 2 Pcints

V

tick/un-tick options required

.", Pcrtl W«1'J\bl:lOn

'" O ossl" o. G<odI<f'It

r

5how~

l ... · ..

.., Curve Th'\J 3 Pt*tl~

I

." Dtl.t~,,~ ()-Gr~n-.-uzPcr.t~ _{option un-ticked is removed}

Pofnt lriOttf\ollltiOn . . . - 

from tool bar

"'

=-;

M~

I

51

(54)

• Open the MX Output Window

- dock the Window (drag to bottom of frame) 'Pin' then 'unpin! the Output Window

.. From CAD > tools select menu

- on CAD menu select Workspace> Preferences

.. Task Navigation > Presentation > On menu select Suite

• select MX View and open 'MX Status as toolbox'

customise MX Status toolbar by removing 'Point Information

52

(55)

I --- - -- _ .__.. ...

Status

•

Deriving information from the display

•

Two basic forms of information:

- Point-related - ToolTip on string contact

• choice of information - select View> Preferences

• information at cursor or in mini-window • coincident strings identified by'> >' in panel - Distance/dimension related - data panels

• select View> Status - choice of..

- Curve through 3 points..

- Distance/Gradient between 2 points..

- Point Information

- Measure Crossfall and Distance

- These can also be accessed through the Status toolbar

53

(56)

--OE:SIGN >00 s..b'tltI'lIII'I(• ....ciOD Roode,... _ t < ( . II-+~---~""""---·--··--·--·----···-···---...- - - -- ...-

Status

Point related

• Select View> Preferences

• Tooltip gives instant status

~ Changes as cursor moves

- MiniFrame Window retains info

-1. Only information relating to the string selected will be displayed.

2. Feature strings in MX are 3-dimensional and contain X,Y and Z at each point. They do not hold information about chainage, bearing and radius. If these boxes are selected no information relating to chainage, bearing or radius will be

displayed.

3. When two or more strings lie under the cursor the » symbol will be shown. By

clicking the right mouse button the ToolTip will change to show the next string in the list. Alternatively, you can press the tab key to scroll through the strings, but you must keep the cursor over the strings in question.

4. A MiniFrame Window is used when you would prefer to have the ToolTip

appearing in the same position at all times. The window can be placed anywhere on the screen. The current string can be displayed in magenta by turning on the

Highlight Status Element.

5. If the background of the ToolTip turns to red, it shows that the picture has

become out of sync with the model file. Use Display> Plan with Styleset to

refresh the drawing.

54 when cursor moves

Pfcfl::,cnces .f1JfRl

T...~-.

00~SI_T_

o

Hi#tJ"I. SI.!M EIooml

DU: e_'...."'.-Oecinol~. d...jl S ~) " ) 1 - - - r"" s"'" TCOOJI

-.,.,

,-=,"3m7.sea Y""I"SS_esJ~

;:-J:Zl.12J

~'o_

~78J5 5l.0942i1

use Tab key to display next

(57)

Ii-t--=---""""""---' - --- - - - --,

Status

Status toolbar

• Activate the Status Too/bar

- View> Too/bar

r

/ Y

,x

A Curve through 3 points

B Distance/Gradient between 2 poin

C Point Information

ts

A B e 0 EF G

D Measure Crossfall and Gradient at a string point E Hide/Delete from Graphics

F Show Hidden Graphics

G Manipulate Text

1. All these functions can be accessed through the View menus.

55

(58)

Point Selection Methods

• PSM is the MX snap setting

X'1'Z C4ncd J=37525::=-;,418=---,=1I=11 4=.585:::-- 'I=9'39.=(0)=---:::-;; xv- - - , - - - ' f'I<on DiU~IO •....w,g Unh)

•

- ! 156.51S57

I

IN/A 15. G519f> IN/A

"""".

.. ChaIhoOO •• • Cut COl'\' IN/A PMI_

PSM

.Urtxked ~ Pci-I. ~ Inle!teCt lIormai r~X't'

To set global PSM - RMB into frame selector

To change the PSM on any panel

Right click in point contra' box • Select from the menu

1. All the PSM's are set to a default PSM. For example, XYZ is the default PSM. Using the right mouse button, the PSM can be changed to any of the others. It will revert to the default when the panel is closed.

2. This default can be changed using the 'Unlocked' area of the status bar (below

the MX graphics window). Click into the 'Unlocked' area with the right mouse

button. Select the preferred setting. PSM setting can still be changed on panels as before.

3. The Single Pick setting is for defining how points are selected from the screen.

The two methods of working are:

a. Single Pick - this returns the required value when the mouse button is

clicked. For example, when using PSM 'Intersection', place the cursor over

the intersection of two strings, the XY coordinates are returned.

b. Multi Pick - you need to select all the data explicitly. For example, when

using PSM 'Point', two picks are required, one to select the string and the

second to select the point.

56

(59)

II +----=--~~---'--···· ..···-··~·.. - - · --···--·

Status

Curve through 3 points

Poi1t

I

Wocel 113

I

ccos

I

R~el PoQ 115

I

ccos

Point

I

.

0

115

Iccos

-1

0°

R~ _=:::l

Radius and circle 179.04400 Righi.

centre reported and CenlJe

137574.27054 11102051016

~

')

~

drawn

1. This is a graphics tool which is extremely useful for the highway or railway designer.

57

(60)

(

Status

Distance! Gradient

FW>D~ 11 8.~

Sk>c>oO"""" bS9l296

f'l., D... IO'~U""'1 (I ees2

Gud ..' ' " " I()=Gl1OIl=- I.ovd O.t..""" l.aaasoo

B.-.g IllH9 S2.U4

...

1. In this example both points have levels and so gradient and level difference is available.

58

(61)

If+-=~---'---···---·---· - -- ---.-...---- -- - -- --

Status

Point Information

Port

Port I

t.l....,s;", fTjj

N...t>:'cA OociNll'I>: . fl::i • Use PSM's to get

information about intersections and normal intersections • Set marker size and

number of decimal points

1. The Point Information function derives information from a string point, or from

string or normal intersections. Right click to access the relevant PSM.

59

(62)

. . -- - - -- - - 1

Status

easure Distance and Crossfall

• I

1. In this example, the point selected is on a reference string, the crossfall to the carriageway edge, and the gradient along the reference string are displayed. The annotation arrows reverse when crossfall or gradient are negative.

2. Using the icons you can:

a_ Select a point on any string

b. Move along the string from point to point using the forward and backward arrows

c. Set the options including; default zoom factor and annotation options d. Zoom to selected point

e. Adjust the annotation size

3. You can also select a range of points.

60

(63)

I . ..

_

._- -..- -- ._

Lab Tooltip and Status Tools

•

Place the cursor over a string to check ToolTips

•

If

'»'

symbol appears try using the right mouse button

to view additional information

•

From View> Preferences adjust the sensitivity

- Change the data to be displayed

•

Set up a MiniFrame Window and use cursor status again

•

Use the various status functions

1. Note if none of the strings display a chainage value, even if you have asked for it, this is because all the strings in the survey are 3D and only have an X, Y and Z value at each point.

61

(64)

+---'---.----.---.--.---~

Model analysis

Triangulation

• Surveyor Design models contain strings

• Analysis uses a triangular mesh - continuous surface

•

string model triangles - linked strings

-----

-

:

~';:

:,-

---- , .. ,,,

:

' I '. " .. ---- ----,.----.. -~ P'''' - no links I I , I . ' I ..

~.-.

'

. .. , 'I ,,.'" r • ' I ': . __ __ ___ l ___ _. ._. .. ._ I " I I

:

.. / / ~ ....t ,,,I'" : -;"0:.':.: :: : :~: ::: :;=~E

triangles -point strings

Note: triangle sides cannot cross string links

1. Existing or proposed surfaces are modelled using strings along breaklines in the surface, such as kerb lines, river banks, carriageway edges etc., with level and point strings 'filling in' the rest of the detail. However, when analysing a model it is always better to form a triangulation mesh from the string data. In this way, data cannot be missed.

2. When creating the triangular mesh from the strings, the triangles should be as equiangular as possible. MX triangulation routines have an extra criterion which states that string links must be maintained (unless you specifically change the setting). This means that a string link must become a triangle edge, even if the triangles become elongated.

3. String links are only maintained if the levels at each end are valid.

4. Within MX, two types of triangulation can be generated. The first uses only one

model to create the triangulation, for use when contouring, while the second

uses two models to create an isopachyte triangulation, allowing the level

difference between the two surfaces to be analysed.

62

Mx Road Part1

o

c)

u

o

c.)

C.

MX -

Road

Design

Bentley MXROAD V8i(SELECTseries 2)

Bentley Institute Course Guide

'-­

C

B

!

tley Institute

l

l.

l

'

"­

l

l

·

Trademarks

Patents

Copyrights

ntley Institute

.

T

able of

Contents

_

-

_

_

_

Course Timetable

.

.

"

Basic Concepts

What is MX?

Basic Concepts

surfaces ­

-models

J

Basic Concepts

surface features-strings

Basic

Concepts

stri

.

9 featu res

=

--­

Basic Concepts

coordinates and units

=

Basic Concepts

three essential files

Getting Started

Create a New Project

Bentley

MXROAD

V8i

---Getting Started

Open existing project

Getting Started

Set

project parameters

1-""

I

_

r

..

I

-

"""

_{Bentley MXROAD V8i(SELECTseries 2)}

'-

"

surfaces

--

_""'"

_....

-

-Survey Input