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There were 7 articles found in this category:

  1. questionMy custom projection does not appear in the projection list
    Occurrence I've added a custom projection line to my MAPINFOW.PRJ but it does not appear in the select projection dialog box's list. Solution Discover's reprojection tools and Discover3D use a separate projection file (to MapInfo Pro) which you will need to copy and paste the custom projection ...
  2. questionHow do I clip my data down to a selected polygon or region boundary?
    Discover provides a number of tools that allow you to clip or cut your datasets down to selected regions/areas. An example would be to provide subsetted datasets to government organisations for lease relinquishment reports, or to a joint venture partner. The tools are data type specific, i.e. ve ...
  3. questionHow do I reproject my data?
    Discover provides a number of different Reprojection Utilities, depending on the type of data to be transformed. Each of these tools will create a copy of the data in the specified output projection, typically with a default _reproject suffix added to the input file name. These tools are inval ...
  4. questionHow do I clip my data to a polygon region?
    Discover provides a number of tools to clip your map data to a area within a selected polygon - 1) Vector layers - Discover->Object Editing->Clip to Polygon 2) Images - Discover->Images->Clip Image 3) Surface Grids - Discover->Surfaces->Grid Utilities->Clip
  5. questionHow do I convert an SRTM GeoTIFF image with embedded elevation data into a grid?
    Occurrence SRTM GeoTIFFs often have elevation data embedded in the image file (e.g from http://srtm.csi.cgiar.org/SELECTION/inputCoord.asp). Discover can extract this information, creating a grid that can be contoured and manipulated by the Surfaces menu (accessed via the Discover>Surfaces me ...
  6. questionWhen I Convert a gridded surface into a Geotiff file, it displays as grayscale
    Occurrence When I convert or export my grid file into a Geotiff, it becomes grayscale and loses it's colouring scheme. Solution This is due to the Geotiff grid format being a multi-banded format. If a single banded grid is converted to this, it will become grayscale as it does not contain 3 RGB ...
  7. questionHow can I set a surface grid data range to display transparent?
    Occurrence The Surfaces>Modify Grid Display tool allows the transparency of an entire grid to be set. But how can I set only a particular data range of a grid to be transparent? Solution To make only a certain data range in a grid transparent, you will have to permanently overwrite these val ...