MaximumUserDefinedScale Property

In This Topic

Gets and sets the maximum scale of data in the tile cache.

Syntax

C#
Visual Basic (Declaration)

public double MaximumUserDefinedScale {get; set;}

Public Property MaximumUserDefinedScale As Double

Remarks

Use GenerateOfflineMap.GetExportRasterTileCacheScales and GenerateOfflineMap.GetExportVectorTileCacheScales to get a list of available scales for tile cache content in the map. The selected scale specified in MaximumUserDefinedScale is compared to the LODs of the tile cache content in the map to determine the specific LOD for a given tile cache to export. The LOD, for a given tile cache, containing the specified scale is the LOD that will be used.

Example

Export Map Raster Tile Cache Content

//namespace ArcGIS.Desktop.Mapping.Offline
var extent = MapView.Active.Extent;
var map = MapView.Active.Map;

//await if needed...
QueuedTask.Run(() =>
{
  //Does the map have any exportable raster content?
  var canExport = GenerateOfflineMap.Instance.GetCanExportRasterTileCache(map);
  if (canExport)
  {
    //Check the available LOD scale ranges
    var scales = GenerateOfflineMap.Instance.GetExportRasterTileCacheScales(map, extent);
    //Pick the desired LOD scale
    var max_scale = scales[scales.Count() / 2];

    //Configure the export parameters
    var export_params = new ExportTileCacheParams()
    {
      Extent = extent,//Use same extent as was used to retrieve scales
      MaximumUserDefinedScale = max_scale
      //DestinationFolder = .... (optional)
    };
    //If DestinationFolder is not set, output defaults to project
    //offline maps location set in the project properties. If that is 
    //not set, output defaults to the current project folder location.

    //Do the export. Depending on the MaximumUserDefinedScale and the
    //area of the extent requested, this can take minutes for tile packages
    //over 1 GB or less if your network speed is slow...
    GenerateOfflineMap.Instance.ExportRasterTileCache(map, export_params);
  }
});

Export Map Vector Tile Cache Content

//namespace ArcGIS.Desktop.Mapping.Offline
var extent = MapView.Active.Extent;
var map = MapView.Active.Map;

//await if needed...
QueuedTask.Run(() =>
{
  //Does the map have any exportable vector tile content?
  var canExport = GenerateOfflineMap.Instance.GetCanExportVectorTileCache(map);
  if (canExport)
  {
    //Check the available LOD scale ranges
    var scales = GenerateOfflineMap.Instance.GetExportVectorTileCacheScales(map, extent);
    //Pick the desired LOD scale
    var max_scale = scales[scales.Count() / 2];

    //Configure the export parameters
    var export_params = new ExportTileCacheParams()
    {
      Extent = extent,//Use same extent as was used to retrieve scales
      MaximumUserDefinedScale = max_scale,
      DestinationFolder = @"C:\Data\Offline"
    };
    //If DestinationFolder is not set, output defaults to project
    //offline maps location set in the project properties. If that is 
    //not set, output defaults to the current project folder location.

    //Do the export. Depending on the MaximumUserDefinedScale and the
    //area of the extent requested, this can take minutes for tile packages
    //over 1 GB or less if your network speed is slow...
    GenerateOfflineMap.Instance.ExportVectorTileCache(map, export_params);
  }
});

Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

Reference

ExportTileCacheParams Class
ExportTileCacheParams Members

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