How can I create a new shapefile using ogr2ogr?

How can I create a new shapefile using ogr2ogr?

I have two shapefiles, a polygon shapefile (lake) and a line shapefile (boudary) I want to create a new shapefile containing the polygon splitted by the polyline using ogr2ogr. how can i do this?

How to get rid of overlapping polygons in Python?

My input consists of a single shape file (ESRI Shapefile) with a single layer. This layer contains polygons which are not distinguishable by attributes. (All have the same attributes). Many of them are overlapping and I would like to get the union of those who are overlapping. Areas that are not connected should result in separate polygons.

How to dissolve multiple polygons in unioncascaded?

UnionCascaded requires MultiPolygon as a geometry type, which is why I implemented the option to re-create single polyons. You could also use ogr2ogr from the command line with option -explodecollections:

How to split shapefile per feature in Python using GDAL?

The function requires a osgeo.ogr.Layer object. mkay, i tried a little bit around and it could work as following. You can get the geometry of gdal layer objects per feature as following. Now i just need to know how to create a osgeo.ogr.layer object based on this geometry. For clarification. I need a function in plain ogr/gdal code!

Is there a way to merge GDAL and OGR?

However, the two libraries are now partially merged, and are generally downloaded and installed together under the combined name of GDAL. So the solution really falls under OGR.

How to create a vector layer in GDAL / OGR?

GDAL/OGR has a Virtual Format spec that allows you to derive layers from flat tables such as a CSV – it does a lot more than that too so go read about it. In the example below we are reading in a CSV with X,Y columns and values. That CSV file is wrapped by an XML file that describes it as an OGR layer.

How to split shapefile per feature in Python?

Specifically, I have code that will read a shapefile layer containing polylines and output the geometry of each feature to text files (used as input for an old model).

Can you open a zip file in OGR?

Your command is basically OK but the error message looks worse than it actually is. The important message is It may be corrupt or read-only file accessed in update mode. You can open files from zip but you can’t update them. If you read the zip as read-only you can get rid of the error messages.

What is the SRS code for a shapefile?

The t_srs flag specifies the SRS that we are converting to, which in this case is EPSG:4326, which represents latitude and longitude coordinates. The input file name, ZIP_CODE_040114.shp. Each spatial reference system has an EPSG code, and the code for geographic coordinates is 4326 – read more here.