shapefile

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Convert a raster image into a polygon using QGis (or another method)

I want to convert several images into polygon shp files using QGis (Quantum GIS 1.6). I need to do edge detection AND differentiate between several different colors of lines (red, green, yellow and b[详细]

2023-04-08 16:29 分类：问答
Creating Shape Files from SQL Server using Ogr2ogr

I am trying to run the following code in a command window. The code executes, but it gives me no values in the .SHP files. The table has GeographyCollections and Polygons stored in a Field of type Geo[详细]

2023-04-02 16:22 分类：问答
How extract waypoint route from bing maps directions and convert it to a shapefile

I was wondering if it is possible to extract each waypoint route in bing maps directions (example of waypoint routes below)[详细]

2023-04-02 08:55 分类：问答
How can I transform the coordinates of a Shapefile?

I am trying to get neighborhood data into my application, and I\'m having problems with the data开发者_如何学Python I am using, which I got from here.[详细]

2023-03-26 02:16 分类：问答
Convert XAML to ShapeFile or SqlGeometry formats

I have some XAML based diagrams that consist of Paths embedded in Canvas objects e.g. <Canvas x:Name=\"c1\" Width=\"55.2533\" Height=\"18.2933\" Canvas.Left=\"194.606\" Canvas.Top=\"194.131\">[详细]

2023-03-22 13:19 分类：问答
Problem in Shapefiles

i need a help i have a shape file that continue 3716 polygon record and want to draw this shape file where some of those polygons need to have a specified color[详细]

2023-03-17 07:24 分类：问答
Checking validity of postgis polygon data (imported from shapefile)

I\'m very new to postgres/postgis so please bear with me. I\'ve imported a shapefile using the shp2pgsql command and now I\'m trying to view it to check that it has imported correctly. I\'ve tried SEL[详细]

2023-03-13 23:56 分类：问答
Canadian Province Shapefile

Looking for a shapefile for Canadian provinces (North america would be acceptable too) for a Msft Report开发者_JS百科ing Services 2008 report. Anyone know a decent site where I can get my hands on the[详细]

2023-02-20 02:49 分类：问答
Problem reading dBase DBF with non-English characters

I have a tool which reads dBase files and uploads the contents to SQL Server, part of a system to import shapefiles. It works but now we have a requirement to import files that include non-English cha[详细]

2023-02-17 02:43 分类：问答
Safety SQL Dynamic Column Query in Postgresql (No Sql Injection)

I\'m using Rails to get data from Postgresql by passing dynamic column and table name. I cannot use ActiveRecord because the shape data that is imported from shapefile is dynamic both table and colum[详细]

2023-02-09 17:19 分类：问答