MapInfo Pro Developers User Group

Hi there,

i'm trying to generate the tiles of a 1 m Terrain Modell out of some huge text files. The files have 4.000.000 records spanning an area of 2000 x 2000 Meters.

When i try to specify the Output geometry of the resulting Raster with:

'---------------------------

RasterInterpolationGeometry myG = new RasterInterpolationGeometry();

           myG.CellSize.X = 1;

           myG.CellSize.Y = 1;

           RasterInterpolationExtent myE = new RasterInterpolationExtent();

           myE.OriginX = dblOriginX;

           myE.OriginY = dblOriginY;

           myE.ExtentX = 2000;

           myE.ExtentY = 2000;

           myE.Type = RasterInterpolationExtentType.Cells;

           myG.Extent = myE;

           interpolationOptions.Geometry = myG;

           // setup raster geometry paramters

           //interpolationOptions.Geometry.CellSize.X = 1;

           //interpolationOptions.Geometry.CellSize.Y = 1;

           //interpolationOptions.Geometry.Extent.Type = RasterInterpolationExtentType.Cells;

           //interpolationOptions.Geometry.Extent.OriginX = dblOriginX;

           //interpolationOptions.Geometry.Extent.OriginY = dblOriginY;

           //interpolationOptions.Geometry.Extent.ExtentX = 2000;

           //interpolationOptions.Geometry.Extent.ExtentY = 2000;

'---------------------------

MiPro generates the raster files but simply ignores those settings and calculates it's own origin and cellsize, whatever Setting i'm using.

I tried it with the commented lines, but that also doesn't work.

I took the Code from the samples of the raster API.

It's MiPro 16.02 on Win 10 64bit Pro & VS 2013 Community.

Most probably i'm doing something wrong here, - anybody who can help?

Thanks and best regards.

Stefan

Hi Stefan,

Looking at the sammple I can see that they create an instance of RasterInterpolationOptions which they assign all these settings to:

-------

   RasterInterpolationOptions interpolationOptions = new RasterInterpolationOptions

...

      interpolationOptions.Geometry.Extent.OriginX = 672670;

      interpolationOptions.Geometry.Extent.OriginY = 6337860;

      interpolationOptions.Geometry.Extent.ExtentType = RasterInterpolationExtentType.RowsColumns;

      interpolationOptions.Geometry.Extent.ExtentX = 453;

      interpolationOptions.Geometry.Extent.ExtentY = 527;

-------

You might also want to make sure that the parameter Extent.Auto is set to FALSE:

-------

      // setup raster geometry paramters

      interpolationOptions.Geometry.Extent.Auto = false;

-------

And finally make sure that you pass your options to the interpolation method:

-------

      // setup raster geometry paramters

      RasterInterpolation.InterpolateNearestNeighbour(interpolationOptions, nearestNeighbourOptions, apiOptions);

-------

Let me know if this helps

Good morning Peter,

Thanks for the answer, but "unfortunately" i did all this. As i wrote, i tried it with Setting all this Parameters directly to the RasterInterpolationOptions Object, or with, as you can see in the code of my message, with specialized Geometry- and Extend-?Objects, neither works the way i tried it.

If you try to set the compression Parameters directly to the RasterApi-Object, this also doesn't work, - only if you create a RasterCompression-Object and assign this to the RasterAPI-Object, then it works.

But with the Output geometry Parameters, i wasn't successfull so far.

I would be happy to know, where i'm wrong.

Thanks in advance

and best regards

Stefan

Can you try to share the full method that you are using? Maybe attach it as a file

Thanks