MapWindow 4 - ActiveX Control Programming : MapWindow Discussion Forum
hi friends i wrote blow code for clip but "tkClipOperation.clClip" return null and but other "tkClipOperation" propertise work very well and i just need "cclip" this is my code main_map = new Shapefile();
probleme with clipping
Posted by:
ahmad_ferdinand ()
Date: March 26, 2012 03:12AM
hi friends
i wrote blow code for clip but "tkClipOperation.clClip" return null and but other
"tkClipOperation" propertise work very well and i just need "cclip"
this is my code
because return null saveas method throw exception , its mean clip never happen and i don't know why , mw4 clip a shapefile with a shapefile with one shape
and i gave that to my code but return null
thanks
[Edit: Added code tags for better reading]
Edited 1 time(s). Last edit at 03/28/2012 02:58AM by pmeems.
i wrote blow code for clip but "tkClipOperation.clClip" return null and but other
"tkClipOperation" propertise work very well and i just need "cclip"
this is my code
main_map = new Shapefile();
dest = new Shapefile();
source = new Shapefile();
Shape n = new Shape();
Shape m = new Shape();
main_map.Open(openFileDialog2.FileName, null);
source.Open(@"C:\Users\Ahmad\Desktop\ahmad\nahie.shp", null);
n = source.get_Shape(0);
for (int i = 0; i < main_map.NumShapes; i++)
{
if (main_map.get_Shape(i).Clip(n,tkClipOperation.clClip) != null)
{
main_map.set_ShapeSelected(i, true);
}
}
dest = main_map.ExportSelection();
dest.SaveAs("C:\\Users\\Ahmad\\Desktop\\clip.shp", null);
because return null saveas method throw exception , its mean clip never happen and i don't know why , mw4 clip a shapefile with a shapefile with one shape
and i gave that to my code but return null
thanks
[Edit: Added code tags for better reading]
Edited 1 time(s). Last edit at 03/28/2012 02:58AM by pmeems.
Re: probleme with clipping
Posted by:
ahmad_ferdinand ()
Date: March 27, 2012 09:02AM
Friend please i need help
Re: probleme with clipping
Posted by:
pmeems ()
Date: March 28, 2012 03:03AM
I don't understand what you want to try to do.
I think using shapefile.Clip() might work better:
[www.mapwindow.org]
Just set shape from source as selected and let MapWindow do the clipping.
--
Paul
--
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---
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The Netherlands
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Release manager, configuration manager and
forum moderator of MapWindow GIS
Owner of MapWindow.nl - Support for
Dutch speaking users: www.mapwindow.nl
*******
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I think using shapefile.Clip() might work better:
[www.mapwindow.org]
Just set shape from source as selected and let MapWindow do the clipping.
--
Paul
--
Don't forget to read the new documentation: www.mapwindow.org/documentation/mapwingis4.8
Join us Google+: MapWindow GIS Google+ Community
Join the MapWindow Group on LinkedIn! LinkedIn - MapWindow Group
Download the latest beta installer at:
tinyurl.com/mwMonthly 32-Bit
tinyurl.com/mwMonthlyx64 64-Bit
Follow me on Twitter MapWindow_nl to read when a new installer is published.
---
Paul Meems
The Netherlands
[www.bontepaarden.nl]
Release manager, configuration manager and
forum moderator of MapWindow GIS
Owner of MapWindow.nl - Support for
Dutch speaking users: www.mapwindow.nl
*******
Everything I say or write is my personal opinion and
not the opinion of the company I work for.
*******
View my profile on LinkedIn
Re: probleme with clipping
Posted by:
ahmad_ferdinand ()
Date: March 28, 2012 07:54AM
believe me , shapefile.clip or shape.clip both return null for each map i use
shapefile.clip always return null and shape.Clip(n,tkClipOperation.clClip) return null also , in mw4 in toolbox/old tools/clip shapefile with polygone/, work well
but in my code return null
thank you for your answers
shapefile.clip always return null and shape.Clip(n,tkClipOperation.clClip) return null also , in mw4 in toolbox/old tools/clip shapefile with polygone/, work well
but in my code return null
thank you for your answers
Re: probleme with clipping
Posted by:
ahmad_ferdinand ()
Date: March 29, 2012 12:48AM
hi friends
i used again "shapefile.clip(true,source,false) , but this time throw this exception : "AccessviolentException" , do you know what is this ? and how can i solve it ?
thank you
i used again "shapefile.clip(true,source,false) , but this time throw this exception : "AccessviolentException" , do you know what is this ? and how can i solve it ?
thank you
Re: probleme with clipping
Posted by:
ahmad_ferdinand ()
Date: March 29, 2012 07:19AM
maybe this time it want return values but this exception is a snag
anybody knows what must do? thanks
anybody knows what must do? thanks
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