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Category » Surfacesrss button

There were 17 articles found in this category:

  1. questionMy drillhole collar positions do not match up with a DEM / DTM grid in the 3D view or drillhole cross-section.
    Discover plots the Drillhole collars at the value in the selected elevation field in the collar table. This value can differ from the topographic (DEM/DTM) grid you have selected in the Drillhole project setup. Discover never "auto adjusts" the value for these too match when plotted in a cross ...
  2. questionMy raster or surface grid image is shifting when I zoom in or out
    Occurrence When I zoom in on a Map Window, a raster or surface grid image shifts and 'jumps around'. Solution This is usually due to image being in a different projection type, than the current mapper window. There are 2 ways to workaround this - 1) Reproject a new copy of the image into the Ma ...
  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 invalu ...
  4. questionFunctionality replaced or retired from the MapInfo Discover 64-bit Bundle
    The following capabilities will not be available in the 64-bit version of MapInfo Discover. They have been either superseded by new & enhanced functionality (as indicated), or retired. If required, these capabilities are all still available in MapInfo Discover 2015 (32-bit) (download here). Note ...
  5. questionTips and Tricks moving from Surfaces to MapInfo Pro Raster
    [A] In Discover 64-bit, my MRR raster grid is not listed/recognized by Discover tools Solution Most tools support MRR files, and some will allow Field/Band selection (as ER Mapper and other formats are multibanded). If you cannot select a MRR gird file it is not yet supported in that particu ...
  6. questionHow do I create contours as polygon regions?
    Occurrence MapInfo Discover 32-bit's Surfaces > Grid Contouring tool produces polylines, but I want the contour ranges to be (enclosed) polygon regions. Solution MapInfo Discover 64-bit The Contour Operation in the new MapInfo Pro Raster can automatically create polygon contours in one s ...
  7. questionOptimisations for more efficient Hydrology module processing
    See the attached document outlining some strategies for handling large datasets more efficiently with Discover's Hydrology Module.
  8. questionError in ERMAPPER registry entry
    Occurrence When I start MapInfo Professional, I receive the error - ERROR in ERMAPPER registry entry. Please specify BASE_PATH value in the registry. Solution This is due to the installation of Discover's grid handler becoming corrupt, generally when ER Mapper or other programs have been isntal ...
  9. questionI cannot open my ER Mapper image as a grid file
    Occurrence ER Mapper header files (.ERS) can be linked to a number of data file formats including ECW or TIFF raster images. You will need to first convert these to a ER Mapper Raster Dataset before importing into Discover. Solution 1/. Open the ER Mapper file (.ERS) in ER Viewer and use File> ...
  10. questionHow do I populate/update vector data with values from a gridded surface?
    Occurrence Some examples of use: - Updating regional RAB drillhole collar locations with accurate RL's from a topographic grid surface provided by a geophysical contractor - Assigning geological, regolith or tenement polygons mean or maximum copper assay vlaues from an underlying gridded geoche ...
  11. questionHow do I create a surface grid from a DXF TIN file?
    Occurrence I have a surface grid, but it is in a 3D vector format, otherwise known as a TIN or wireframe model. How do I create a standard surface grid image format for use in the Surfaces module? Solution To create a grid from a DXF or other 3D vector TIN file (TIN surface, wireframe/mesh), s ...
  12. questionI cannot use Vertical Mapper after installing Discover or Engage3D
    Occurrence After installing Discover or Engage3D, I am unable to use certain Vertical Mapper tools. Solution Ensure the grids you wish to manipulate are in Vertical Mapper format, which can be converted using the Grid Utilities>Convert tool. Open the grid file in the front map window, and go ...
  13. questionHow do I convert a polygon vector file to a gridded surface?
    Occurrence If I have point or contour line data, the Surfaces->Create Grid tool produces good results. But for polygons with attributes - how do I create an accurate grid? Solution If you have a native MapInfo polygon file, with polygon regions attributed by a discrete numeric value field, y ...
  14. 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 You will need to select the option other then Full Grid; so you can clip by Value, Percentage or Percent ...
  15. questionHow do I export my surface grid as a compressed registered raster image?
    Occurrence I have created/imported a surface grid file in Discover, and modified its display. How can I export this as a small compressed registered image file, for static viewing by others? Solution Simply use Surfaces>Export GridFile or Contour>Export Grid to Image. This method wil ...
  16. questionI've added a surface grid or raster image to my mapper window, but it does not appear!
    Try the following: 1/. Ensure that the map window view encompasses the surface grid. Right-click in the map window, select the View Entire Layer menu option, and choose either the 'All Layers' or grid name from the pull down list. Press OK. 2/. In MapInfo's Layer Control dialog, is the grid ti ...
  17. questionHow do I select or clip points in a TAB file that lie above or below a grid surface?
    Occurrence For example, a topographic grid has been created of an open cut pit (e.g. by overlaying a DEM grid with a series of donutted polygons representing pit bench levels using the Surfaces>Grid Utilities>Overlay tool). You would like to examine those portions of the original explor ...