Curve Fitting With MX [TN]

Jason Walsh — Fri, 13 Sep 2013 08:19:27 GMT

Current Revision posted to OpenRoads | OpenSite Wiki by Jason Walsh on 9/13/2013 8:19:27 AM


	Applies To

	Product(s):	Bentley MX Products
	Version(s):	All
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A
	Original Author:	Bentley Technical Support Group

Overview

Care must be taken when using MX in understanding what situations Curve fitting should be switched on and off, and where in the product the decision to turn curve fitting on or off must be made.

Understanding the Curve Fit Settings

The parameter file (...\mfw\parameters\NN_metric.prm) has a variable for curve fitting, which can be set on or off. It's default setting is curve fitting on. The relevant extract from the parameter file is as follows.

* ADDITIONAL OPTION 017 PARAMETERS* --------------------------------*CURVEFIT=1 * CURVE FITTING INDICATOR* 0 - CURVE FITTING OFF* 1 - CURVE FITTING ON (DEFAULT)

This variable will be applied when you open a new or existing MX project. The variable is not available in the Project Settings GUI, or in the System Parameters GUI.

The use of linemode to turn curve fitting on or off (minor option 017, 1=nocu or 1=curv (default)) may not be reflected when moving to the graphical interface of MX. There are individual GUI's in report, where the curve fitting setting can be overwritten from that set by the 017 minor option or by the parameter file.

These are as follows:

Dynamic reports - Normals
Dynamic reports - Perpendiculars
Dynamic reports - Intersections

Report > geometric reports > Normal intersection
Report > geometric reports > Intersection of two strings

The curve fitting check box on the Report GUI's is a global setting and will update the current settings within that project when OK or apply is selected on the panel.

Curve fitting is switched on for all design options, excepting Straight Line Design.

Curve fitting can also be represented and catered for when drawing strings. Complications can arise when the default curve fitting option is changed in report to off and is honored when drawing longsection models via an input file, sometimes resulting in the error "E0395 Unable to access string name to generate variable name". This is because the normal is being calculated to a non curve fit position.

The curve fitting check box on the Report GUI's is a global setting, and will not just apply for the individual panel.

Normal intersections/Perpendiculars

Reporting normals or perpendiculars to other strings can cause discrepancies when points on opposing strings are not normal to one another. If curve fitting is off then the normal will intersect with the chord on the opposing string. If curve fitting is on then the normal will intersect with the string itself.

The diagram above shows a normal being dropped from C001 onto M001. In this situation curve fitting is off and the distance that will be reported is the distance to the chord on M001

To Check the Current Curve Fitting Status

If you are unsure of the current curve fitting setting in MX it can be checked by selecting View > Linemode and typing repo <enter> 017 <enter>. Check the output window and on the right hand side of the window the current settings will have been listed and show whether curve fitting is currently applied or there is no curve fitting.

External Links

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: Civil, SELECTservices, MXURBAN, TechNote, Curve fitting, TN8286

Curve Fitting With MX [TN]

Elisabeth Pry — Fri, 21 Jun 2013 20:54:55 GMT

Revision 9 posted to OpenRoads | OpenSite Wiki by Elisabeth Pry on 6/21/2013 8:54:55 PM


	Applies To

	Product(s):	Bentley MX Products
	Version(s):	All
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A
	Original Author:	Bentley Technical Support Group

Overview

Care must be taken when using MX in understanding what situations Curve fitting should be switched on and off, and where in the product the decision to turn curve fitting on or off must be made.

Understanding the Curve Fit Settings

* ADDITIONAL OPTION 017 PARAMETERS* --------------------------------*CURVEFIT=1 * CURVE FITTING INDICATOR* 0 - CURVE FITTING OFF* 1 - CURVE FITTING ON (DEFAULT)

This variable will be applied when you open a new or existing MX project. The variable is not available in the Project Settings GUI, or in the System Parameters GUI.

These are as follows:

Dynamic reports - Normals
Dynamic reports - Perpendiculars
Dynamic reports - Intersections

Report > geometric reports > Normal intersection
Report > geometric reports > Intersection of two strings

The curve fitting check box on the Report GUI's is a global setting and will update the current settings within that project when OK or apply is selected on the panel.

Curve fitting is switched on for all design options, excepting Straight Line Design.

The curve fitting check box on the Report GUI's is a global setting, and will not just apply for the individual panel.

Normal intersections/Perpendiculars

The diagram above shows a normal being dropped from C001 onto M001. In this situation curve fitting is off and the distance that will be reported is the distance to the chord on M001

To Check the Current Curve Fitting Status

External Links

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: Civil, Curve fitting, MXURBAN, TechNote, selectservices, TN8286

Curve Fitting With MX [TN]

Jacquelyn Pettus — Wed, 31 Oct 2012 21:22:06 GMT

Revision 8 posted to OpenRoads | OpenSite Wiki by Jacquelyn Pettus on 10/31/2012 9:22:06 PM

Document Information

Document Type: TechNote

Product(s): Bentley MX Products

Version(s): All

Original Author: Bentley Technical Support Group

Legacy Document Number: 8286

Overview

Care must be taken when using MX in understanding what situations Curve fitting should be switched on and off, and where in the product the decision to turn curve fitting on or off must be made.

Understanding the Curve Fit Settings

* ADDITIONAL OPTION 017 PARAMETERS* --------------------------------*CURVEFIT=1 * CURVE FITTING INDICATOR* 0 - CURVE FITTING OFF* 1 - CURVE FITTING ON (DEFAULT)

This variable will be applied when you open a new or existing MX project. The variable is not available in the Project Settings GUI, or in the System Parameters GUI.

These are as follows:

Dynamic reports - Normals
Dynamic reports - Perpendiculars
Dynamic reports - Intersections

Report > geometric reports > Normal intersection
Report > geometric reports > Intersection of two strings

The curve fitting check box on the Report GUI's is a global setting and will update the current settings within that project when OK or apply is selected on the panel.

Curve fitting is switched on for all design options, excepting Straight Line Design.

The curve fitting check box on the Report GUI's is a global setting, and will not just apply for the individual panel.

Normal intersections/Perpendiculars

The diagram above shows a normal being dropped from C001 onto M001. In this situation curve fitting is off and the distance that will be reported is the distance to the chord on M001

To Check the Current Curve Fitting Status

External Links

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: Civil, Curve fitting, MXURBAN, TechNote, TechNotes

Curve Fitting With MX [TN]

Elisa McGraw — Thu, 22 Jul 2010 18:53:16 GMT

Revision 7 posted to OpenRoads | OpenSite Wiki by Elisa McGraw on 7/22/2010 6:53:16 PM

Document Information

Document Type: TechNote

Product(s): Bentley MX Products

Version(s): All

Original Author: Bentley Technical Support Group

Legacy Document Number: 8286

Overview

Care must be taken when using MX in understanding what situations Curve fitting should be switched on and off, and where in the product the decision to turn curve fitting on or off must be made.

Understanding the Curve Fit Settings

* ADDITIONAL OPTION 017 PARAMETERS* --------------------------------*CURVEFIT=1 * CURVE FITTING INDICATOR* 0 - CURVE FITTING OFF* 1 - CURVE FITTING ON (DEFAULT)

This variable will be applied when you open a new or existing MX project. The variable is not available in the Project Settings GUI, or in the System Parameters GUI.

These are as follows:

Dynamic reports - Normals
Dynamic reports - Perpendiculars
Dynamic reports - Intersections

Report > geometric reports > Normal intersection
Report > geometric reports > Intersection of two strings

The curve fitting check box on the Report GUI's is a global setting and will update the current settings within that project when OK or apply is selected on the panel.

Curve fitting is switched on for all design options, excepting Straight Line Design.

The curve fitting check box on the Report GUI's is a global setting, and will not just apply for the individual panel.

Normal intersections/Perpendiculars

The diagram above shows a normal being dropped from C001 onto M001. In this situation curve fitting is off and the distance that will be reported is the distance to the chord on M001

To Check the Current Curve Fitting Status

External Links

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: Civil, Curve fitting, MXURBAN, TechNote, TechNotes

Curve Fitting With MX [TN]

Elisa McGraw — Tue, 22 Jun 2010 13:13:33 GMT

Revision 6 posted to OpenRoads | OpenSite Wiki by Elisa McGraw on 6/22/2010 1:13:33 PM

Document Information

Document Type: TechNote

Product(s): Bentley MX Products

Version(s): All

Original Author: Bentley Technical Support Group

Legacy Document Number: 8286

Overview

Care must be taken when using MX in understanding what situations Curve fitting should be switched on and off, and where in the product the decision to turn curve fitting on or off must be made.

Understanding the Curve Fit Settings

* ADDITIONAL OPTION 017 PARAMETERS* --------------------------------*CURVEFIT=1 * CURVE FITTING INDICATOR* 0 - CURVE FITTING OFF* 1 - CURVE FITTING ON (DEFAULT)

This variable will be applied when you open a new or existing MX project. The variable is not available in the Project Settings GUI, or in the System Parameters GUI.

These are as follows:

Dynamic reports - Normals
Dynamic reports - Perpendiculars
Dynamic reports - Intersections

Report > geometric reports > Normal intersection
Report > geometric reports > Intersection of two strings

The curve fitting check box on the Report GUI's is a global setting and will update the current settings within that project when OK or apply is selected on the panel.

Curve fitting is switched on for all design options, excepting Straight Line Design.

The curve fitting check box on the Report GUI's is a global setting, and will not just apply for the individual panel.

Normal intersections/Perpendiculars

The diagram above shows a normal being dropped from C001 onto M001. In this situation curve fitting is off and the distance that will be reported is the distance to the chord on M001

To Check the Current Curve Fitting Status

External Links

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: Civil, Curve fitting, MXURBAN, TechNote, TechNotes

Curve Fitting With MX

Elisa McGraw — Tue, 15 Jun 2010 20:29:59 GMT

Revision 5 posted to OpenRoads | OpenSite Wiki by Elisa McGraw on 6/15/2010 8:29:59 PM

Document Information

Document Type: TechNote

Product(s): Bentley MX Products

Version(s): All

Original Author: Bentley Technical Support Group

Legacy Document Number: 8286

Overview

Care must be taken when using MX in understanding what situations Curve fitting should be switched on and off, and where in the product the decision to turn curve fitting on or off must be made.

Understanding the Curve Fit Settings

* ADDITIONAL OPTION 017 PARAMETERS* --------------------------------*CURVEFIT=1 * CURVE FITTING INDICATOR* 0 - CURVE FITTING OFF* 1 - CURVE FITTING ON (DEFAULT)

This variable will be applied when you open a new or existing MX project. The variable is not available in the Project Settings GUI, or in the System Parameters GUI.

These are as follows:

Dynamic reports - Normals
Dynamic reports - Perpendiculars
Dynamic reports - Intersections

Report > geometric reports > Normal intersection
Report > geometric reports > Intersection of two strings

The curve fitting check box on the Report GUI's is a global setting and will update the current settings within that project when OK or apply is selected on the panel.

Curve fitting is switched on for all design options, excepting Straight Line Design.

The curve fitting check box on the Report GUI's is a global setting, and will not just apply for the individual panel.

Normal intersections/Perpendiculars

The diagram above shows a normal being dropped from C001 onto M001. In this situation curve fitting is off and the distance that will be reported is the distance to the chord on M001

To Check the Current Curve Fitting Status

External Links

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: Civil, Curve fitting, MXURBAN, TechNote, TechNotes

Curve Fitting With MX

Elisa McGraw — Tue, 04 Nov 2008 18:31:50 GMT

Revision 4 posted to OpenRoads | OpenSite Wiki by Elisa McGraw on 11/4/2008 6:31:50 PM

Document Information

Document Type: TechNote

Product(s): Bentley MX Products

Version(s): All

Original Author: Bentley Technical Support Group

Legacy Document Number: 8286

Overview

Care must be taken when using MX in understanding what situations Curve fitting should be switched on and off, and where in the product the decision to turn curve fitting on or off must be made.

Understanding the Curve Fit Settings

* ADDITIONAL OPTION 017 PARAMETERS* --------------------------------*CURVEFIT=1 * CURVE FITTING INDICATOR* 0 - CURVE FITTING OFF* 1 - CURVE FITTING ON (DEFAULT)

This variable will be applied when you open a new or existing MX project. The variable is not available in the Project Settings GUI, or in the System Parameters GUI.

These are as follows:

Dynamic reports - Normals
Dynamic reports - Perpendiculars
Dynamic reports - Intersections

Report > geometric reports > Normal intersection
Report > geometric reports > Intersection of two strings

The curve fitting check box on the Report GUI's is a global setting and will update the current settings within that project when OK or apply is selected on the panel.

Curve fitting is switched on for all design options, excepting Straight Line Design.

The curve fitting check box on the Report GUI's is a global setting, and will not just apply for the individual panel.

Normal intersections/Perpendiculars

The diagram above shows a normal being dropped from C001 onto M001. In this situation curve fitting is off and the distance that will be reported is the distance to the chord on M001

To Check the Current Curve Fitting Status

External Links

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: Civil, Curve fitting, MXURBAN, TechNote, Technotoes

Curve Fitting With MX

Elisa McGraw — Thu, 30 Oct 2008 13:47:57 GMT

Revision 3 posted to OpenRoads | OpenSite Wiki by Elisa McGraw on 10/30/2008 1:47:57 PM

Document Information

Document Type: TechNote

Product(s): Bentley MX Products

Version(s): All

Original Author: Bentley Technical Support Group

Overview

Care must be taken when using MX in understanding what situations Curve fitting should be switched on and off, and where in the product the decision to turn curve fitting on or off must be made.

Understanding the Curve Fit Settings

* ADDITIONAL OPTION 017 PARAMETERS* --------------------------------*CURVEFIT=1 * CURVE FITTING INDICATOR* 0 - CURVE FITTING OFF* 1 - CURVE FITTING ON (DEFAULT)

This variable will be applied when you open a new or existing MX project. The variable is not available in the Project Settings GUI, or in the System Parameters GUI.

These are as follows:

Dynamic reports - Normals
Dynamic reports - Perpendiculars
Dynamic reports - Intersections

Report > geometric reports > Normal intersection
Report > geometric reports > Intersection of two strings

The curve fitting check box on the Report GUI's is a global setting and will update the current settings within that project when OK or apply is selected on the panel.

Curve fitting is switched on for all design options, excepting Straight Line Design.

The curve fitting check box on the Report GUI's is a global setting, and will not just apply for the individual panel.

Normal intersections/Perpendiculars

The diagram above shows a normal being dropped from C001 onto M001. In this situation curve fitting is off and the distance that will be reported is the distance to the chord on M001

To Check the Current Curve Fitting Status

External Links

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags:

Curve Fitting With MX

Elisa McGraw — Tue, 21 Oct 2008 21:22:29 GMT

Revision 2 posted to OpenRoads | OpenSite Wiki by Elisa McGraw on 10/21/2008 9:22:29 PM

Document Information

Document Type: TechNote

Product(s): Bentley MX Products

Version(s): All

Original Author: Bentley Technical Support Group

Overview

Care must be taken when using MX in understanding what situations Curve fitting should be switched on and off, and where in the product the decision to turn curve fitting on or off must be made.

Understanding the Curve Fit Settings

* ADDITIONAL OPTION 017 PARAMETERS* --------------------------------*CURVEFIT=1 * CURVE FITTING INDICATOR* 0 - CURVE FITTING OFF* 1 - CURVE FITTING ON (DEFAULT)

This variable will be applied when you open a new or existing MX project. The variable is not available in the Project Settings GUI, or in the System Parameters GUI.

These are as follows:

Dynamic reports - Normals
Dynamic reports - Perpendiculars
Dynamic reports - Intersections

Report > geometric reports > Normal intersection
Report > geometric reports > Intersection of two strings

The curve fitting check box on the Report GUI's is a global setting and will update the current settings within that project when OK or apply is selected on the panel.

Curve fitting is switched on for all design options, excepting Straight Line Design.

The curve fitting check box on the Report GUI's is a global setting, and will not just apply for the individual panel.

Normal intersections/Perpendiculars

The diagram above shows a normal being dropped from C001 onto M001. In this situation curve fitting is off and the distance that will be reported is the distance to the chord on M001

To Check the Current Curve Fitting Status

External Links

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags:

Curve Fitting With MX

Dave Bentley — Tue, 01 Jul 2008 08:27:40 GMT

Revision 1 posted to OpenRoads | OpenSite Wiki by Dave Bentley on 7/1/2008 8:27:40 AM

Date Added:

July 1, 2008

Introduction

Care must be taken when using MX in understanding what situations Curve fitting should be switched on and off, and where in the product the decision to turn curve fitting on or off must be made.

Understanding the Curve Fit Settings
The parameter file (...\mfw\parameters\NN_metric.prm) has a variable for curve fitting, which can be set on or off. It's default setting is curve fitting on. The relevant extract from the parameter file is as follows.

* ADDITIONAL OPTION 017 PARAMETERS* --------------------------------*CURVEFIT=1 * CURVE FITTING INDICATOR* 0 - CURVE FITTING OFF* 1 - CURVE FITTING ON (DEFAULT)

This variable will be applied when you open a new or existing MX project. The variable is not available in the Project Settings GUI, or in the System Parameters GUI.

These are as follows:

Dynamic reports - Normals
Dynamic reports - Perpendiculars
Dynamic reports - Intersections

Report > geometric reports > Normal intersection
Report > geometric reports > Intersection of two strings

The curve fitting check box on the Report GUI's is a global setting and will update the current settings within that project when OK or apply is selected on the panel.

Curve fitting is switched on for all design options, excepting Straight Line Design.

The curve fitting check box on the Report GUI's is a global setting, and will not just apply for the individual panel.

Normal intersections/Perpendiculars
Reporting normals or perpendiculars to other strings can cause discrepancies when points on opposing strings are not normal to one another. If curve fitting is off then the normal will intersect with the chord on the opposing string. If curve fitting is on then the normal will intersect with the string itself.

The diagram above shows a normal being dropped from C001 onto M001. In this situation curve fitting is off and the distance that will be reported is the distance to the chord on M001

To Check the Current Curve Fitting Status
If you are unsure of the current curve fitting setting in MX it can be checked by selecting View > Linemode and typing repo <enter> 017 <enter>. Check the output window and on the right hand side of the window the current settings will have been listed and show whether curve fitting is currently applied or there is no curve fitting.

Tags:

Curve Fitting With MX [TN]

Curve Fitting With MX [TN]

Overview

Understanding the Curve Fit Settings

Normal intersections/Perpendiculars

To Check the Current Curve Fitting Status

See Also

External Links

Comments or Corrections?

Curve Fitting With MX [TN]

Overview

Understanding the Curve Fit Settings

Normal intersections/Perpendiculars

To Check the Current Curve Fitting Status

See Also

External Links

Comments or Corrections?

Curve Fitting With MX [TN]

Document Information

Overview

Understanding the Curve Fit Settings

Normal intersections/Perpendiculars

To Check the Current Curve Fitting Status

See Also

External Links

Comments or Corrections?

Curve Fitting With MX [TN]

Document Information

Overview

Understanding the Curve Fit Settings

Normal intersections/Perpendiculars

To Check the Current Curve Fitting Status

See Also

External Links

Comments or Corrections?

Curve Fitting With MX [TN]

Document Information

Overview

Understanding the Curve Fit Settings

Normal intersections/Perpendiculars

To Check the Current Curve Fitting Status

See Also

External Links

Comments or Corrections?

Curve Fitting With MX

Document Information

Overview

Understanding the Curve Fit Settings

Normal intersections/Perpendiculars

To Check the Current Curve Fitting Status

See Also

External Links

Comments or Corrections?

Curve Fitting With MX

Document Information

Overview

Understanding the Curve Fit Settings

Normal intersections/Perpendiculars

To Check the Current Curve Fitting Status

See Also

External Links

Comments or Corrections?

Curve Fitting With MX

Document Information

Overview

Understanding the Curve Fit Settings

Normal intersections/Perpendiculars

To Check the Current Curve Fitting Status

See Also

External Links

Comments or Corrections?

Curve Fitting With MX

Document Information

Overview

Understanding the Curve Fit Settings

Normal intersections/Perpendiculars

To Check the Current Curve Fitting Status

See Also

External Links

Comments or Corrections?