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0answers
48 views

How to create correct vector grid in meter

I want to create a vector grid, with squares of 100x100m but have some serious trouble in solving this apparently easy task. I already read all the posts, but didnt find a good solution. Here is what ...
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1answer
18 views

Using QGIS, how can I create attributes within a polygon layer based from a selection in that layer?

I'd like to add a column, or attribute rather, to selected rows within a polygon layer. I would simply like to make a binary system, where those that are selected receive a "1,' let's say, and all ...
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2answers
118 views

How to create report using arcpy in arcgis 10.2 (result the same as using view -> Reports -> Create Report)

I need to create reports in arcgis 10.2. because I am not intent to request user to go through all the steps for generating reports, so I want to create an add-in tool to do this. The result is the ...
2
votes
1answer
120 views

How to select only polygons that overlap with another layer?

I have two shapefile layers created from different thresholds from a predictive model (Pink=80; Yellow=95). Is there a way to create a new layer of only those pink polygons that contain yellow ...
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1answer
36 views

ArcGIS cutting a line out of polygon

Ok I know that this must be a pretty silly question, but I'm just not able to create a line in ArcGIS. I started an edit session and began with straight segment. All i want to do is simply drawing a ...
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0answers
365 views

Creating multiple feature classes from multiple text files using python

I have a folder with multiple text files. I am writing a code that reads all of the text files, and creates a point feature class (i.e. a shape file) for each one. The text files are all tab ...
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0answers
20 views

Is it possible to create new polygon with the streaming mode on QGIS1.8?

I would like to create a new polygon with the mode of stream. In Arc GIS, it is possible to change the mode from stream to normal that vertec is placed based on click. Strem mode means vertex is ...
2
votes
1answer
132 views

Invalid SQL Error when using InsertCursor on table created using CreateTable

I am trying to write a list of items to a new table in Arc. When I attempt to add a new row to an Arc table, I get the following error: Runtime error Traceback (most recent call last): File ...
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3answers
2k views

How to create a new 'gis' database in PostGIS?

I'd like to create a new database in PostGIS, so I can load stuff into it while the current database is being used. According to the docs Some packaged distributions of PostGIS (in particular the ...
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0answers
438 views

How can I create new shapefile in QGIS1.8 from “Save selection as…”

when select a shapefile feature from census boundary file and use "save selection as" to create a new shapefile, program returns error: "Export to vector file failed. Error: creation of layer failed ...
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0answers
86 views

Create Layer including drawing objects

I draw some polylines on map. How create new layer with this features? Map and Polylines must be in different layers. public void DrawPolylineUsingInputGeometry(IActiveView activeView, ...
2
votes
1answer
450 views

Create a shapefile from geometry

Please excuse my lingo, I am still learning some aspects of geo spatial and arcpy. I have a python script that takes a shapefile. The shapefile consists of a polyline. I have traversed the polyline, ...
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vote
1answer
400 views

PostGIS Create Table with Geometry

I have written a query that will create a table and perform a GROUP BY from an existing spatial table, but the table does have the geometry. I am wondering where, and what, in this query I put to ...