private async Task LoadRenderingRules()
{
// Create a new image service raster from the Uri.
ImageServiceRaster imageServiceRaster = new ImageServiceRaster(_myUri);
try
{
// Load the image service raster.
await imageServiceRaster.LoadAsync();
// Get the ArcGIS image service info (metadata) from the image service raster.
ArcGISImageServiceInfo arcGISImageServiceInfo = imageServiceRaster.ServiceInfo;
// Get the full extent envelope of the image service raster (the Charlotte, NC area).
Envelope myEnvelope = arcGISImageServiceInfo.FullExtent;
// Define a new view point from the full extent envelope.
Viewpoint viewPoint = new Viewpoint(myEnvelope);
// Zoom to the area of the full extent envelope of the image service raster.
await _myMapView.SetViewpointAsync(viewPoint);
// Get the rendering rule info (i.e. definitions of how the image should be drawn) info from the image service raster.
_renderRuleInfos = arcGISImageServiceInfo.RenderingRuleInfos;
}
catch (Exception e)
{
new UIAlertView("Error", e.ToString(), (IUIAlertViewDelegate)null, "OK", null).Show();
}
}
private async void Initialize()
{
// Create new map with the dark gray canvas basemap.
Map myMap = new Map(Basemap.CreateDarkGrayCanvasVector());
// Create a URI to the image service raster.
Uri uri = new Uri("https://sampleserver6.arcgisonline.com/arcgis/rest/services/NLCDLandCover2001/ImageServer");
// Create new image service raster from the URI.
ImageServiceRaster imageServiceRaster = new ImageServiceRaster(uri);
// Load the image service raster.
await imageServiceRaster.LoadAsync();
// Get the service information (aka. metadata) about the image service raster.
ArcGISImageServiceInfo arcGISImageServiceInfo = imageServiceRaster.ServiceInfo;
// Create a new raster layer from the image service raster.
RasterLayer rasterLayer = new RasterLayer(imageServiceRaster);
// Add the raster layer to the maps layer collection.
myMap.Basemap.BaseLayers.Add(rasterLayer);
// Assign the map to the map view.
_myMapView.Map = myMap;
// Zoom the map to the extent of the image service raster (which also the extent of the raster layer).
await _myMapView.SetViewpointGeometryAsync(arcGISImageServiceInfo.FullExtent);
}
private async void Initialize()
{
// Create new map with the dark gray canvas basemap
Map myMap = new Map(Basemap.CreateDarkGrayCanvasVector());
// Create a Uri to the image service raster
var myUri = new Uri("http://sampleserver6.arcgisonline.com/arcgis/rest/services/NLCDLandCover2001/ImageServer");
// Create new image service raster from the Uri
ImageServiceRaster myImageServiceRaster = new ImageServiceRaster(myUri);
// Load the image service raster
await myImageServiceRaster.LoadAsync();
// Get the service information (aka. metadata) about the image service raster
ArcGISImageServiceInfo myArcGISImageServiceInfo = myImageServiceRaster.ServiceInfo;
// Create a new raster layer from the image service raster
RasterLayer myRasterLayer = new RasterLayer(myImageServiceRaster);
// Add the raster layer to the maps layer collection
myMap.Basemap.BaseLayers.Add(myRasterLayer);
// Assign the map to the map view
MyMapView.Map = myMap;
// Zoom the map to the extent of the image service raster (which also the extent of the raster layer)
await MyMapView.SetViewpointGeometryAsync(myArcGISImageServiceInfo.FullExtent);
// NOTE: The sample zooms to the extent of the ImageServiceRaster. Currently the ArcGIS Runtime does not
// support zooming a RasterLayer out beyond 4 times it's published level of detail. The sample uses
// MapView.SetViewpointCenterAsync() method to ensure the image shows when the app starts. You can see
// the effect of the image service not showing when you zoom out to the full extent of the image and beyond. }
}
private static ArcGISImageServiceProvider CreateProvider2()
{
var info = new ArcGISImageServiceInfo();
info.Url = "http://imagery.arcgisonline.com/ArcGIS/rest/services/LandsatGLS/FalseColor/ImageServer/exportImage";
info.Format = "jpgpng";
info.Interpolation = InterpolationType.NearestNeighbor;
info.F = "image";
info.ImageSR = "102100";
info.BBoxSR = "102100";
info.Time = "157766400000,157766400000";
return(new ArcGISImageServiceProvider(info, true));
}
private async void Initialize()
{
// Assign a new map to the MapView
MyMapView.Map = new Map
{
// Set the basemap to Streets
Basemap = new Basemap(BasemapStyle.ArcGISStreets)
};
// Create a new image service raster from the Uri
ImageServiceRaster myImageServiceRaster = new ImageServiceRaster(_myUri);
try
{
// Load the image service raster
await myImageServiceRaster.LoadAsync();
// Get the ArcGIS image service info (metadata) from the image service raster
ArcGISImageServiceInfo myArcGISImageServiceInfo = myImageServiceRaster.ServiceInfo;
// Get the full extent envelope of the image service raster (the Charlotte, NC area)
Envelope myEnvelope = myArcGISImageServiceInfo.FullExtent;
// Define a new view point from the full extent envelope
Viewpoint myViewPoint = new Viewpoint(myEnvelope);
// Zoom to the area of the full extent envelope of the image service raster
await MyMapView.SetViewpointAsync(myViewPoint);
// Get the rendering rule info (i.e. definitions of how the image should be drawn) info from the image service raster
_myReadOnlyListRenderRuleInfos = myArcGISImageServiceInfo.RenderingRuleInfos;
// Loop through each rendering rule info
foreach (RenderingRuleInfo myRenderingRuleInfo in _myReadOnlyListRenderRuleInfos)
{
// Get the name of the rendering rule info
string myRenderingRuleName = myRenderingRuleInfo.Name;
// Add the name of the rendering rule info to the combo box
RenderingRuleChooser.Items.Add(myRenderingRuleName);
}
// Set the combo box index to the first rendering rule info name
RenderingRuleChooser.SelectedIndex = 0;
}
catch (Exception e)
{
MessageBox.Show(e.ToString(), "Error");
}
}
private async void Initialize()
{
// Assign a new map to the MapView
_myMapView.Map = new Map
{
// Set the basemap to Streets
Basemap = Basemap.CreateStreets()
};
// Create a new image service raster from the Uri
ImageServiceRaster myImageServiceRaster = new ImageServiceRaster(_myUri);
try
{
// Load the image service raster
await myImageServiceRaster.LoadAsync();
// Get the ArcGIS image service info (metadata) from the image service raster
ArcGISImageServiceInfo myArcGISImageServiceInfo = myImageServiceRaster.ServiceInfo;
// Get the full extent envelope of the image service raster (the Charlotte, NC area)
Envelope myEnvelope = myArcGISImageServiceInfo.FullExtent;
// Define a new view point from the full extent envelope
Viewpoint myViewPoint = new Viewpoint(myEnvelope);
// Zoom to the area of the full extent envelope of the image service raster
await _myMapView.SetViewpointAsync(myViewPoint);
// Get the rendering rule info (i.e. definitions of how the image should be drawn) info from the image service raster
_myReadOnlyListRenderRuleInfos = myArcGISImageServiceInfo.RenderingRuleInfos;
// Loop through each rendering rule info
foreach (RenderingRuleInfo myRenderingRuleInfo in _myReadOnlyListRenderRuleInfos)
{
// Get the name of the rendering rule info
string myRenderingRuleName = myRenderingRuleInfo.Name;
// Add the name of the rendering rule info to the list of names
_names.Add(myRenderingRuleName);
}
// Invoke the button for the user to change the rendering rule of the image service raster
OnChangeRenderingRuleClicked(_renderingRulesButton, null);
}
catch (Exception e)
{
new AlertDialog.Builder(this).SetMessage(e.ToString()).SetTitle("Error").Show();
}
}
private async void Initialize()
{
// Assign a new map to the MapView
MyMapView.Map = new Map
{
// Set the basemap to Streets
Basemap = new Basemap(BasemapStyle.ArcGISStreets)
};
// Create a new image service raster from the Uri
ImageServiceRaster myImageServiceRaster = new ImageServiceRaster(_myUri);
try
{
// Load the image service raster
await myImageServiceRaster.LoadAsync();
// Get the ArcGIS image service info (metadata) from the image service raster
ArcGISImageServiceInfo myArcGISImageServiceInfo = myImageServiceRaster.ServiceInfo;
// Get the full extent envelope of the image service raster (the Charlotte, NC area)
Envelope myEnvelope = myArcGISImageServiceInfo.FullExtent;
// Define a new view point from the full extent envelope
Viewpoint myViewPoint = new Viewpoint(myEnvelope);
// Zoom to the area of the full extent envelope of the image service raster
await MyMapView.SetViewpointAsync(myViewPoint);
// Get the rendering rule info (i.e. definitions of how the image should be drawn) info from the image service raster
_myReadOnlyListRenderRuleInfos = myArcGISImageServiceInfo.RenderingRuleInfos;
// Loop through each rendering rule info
foreach (RenderingRuleInfo myRenderingRuleInfo in _myReadOnlyListRenderRuleInfos)
{
// Get the name of the rendering rule info
string myRenderingRuleName = myRenderingRuleInfo.Name;
// Add the name of the rendering rule info into the list of names
_names.Add(myRenderingRuleName);
}
// Call the function to display the image service raster based up on user choice of rendering rules
await ChangeRenderingRuleAsync();
}
catch (Exception e)
{
await Application.Current.MainPage.DisplayAlert("Error", e.ToString(), "OK");
}
}
private async Task LoadRenderingRules()
{
// Create a new image service raster from the Uri.
ImageServiceRaster imageServiceRaster = new ImageServiceRaster(_myUri);
try
{
// Load the image service raster.
await imageServiceRaster.LoadAsync();
// Get the ArcGIS image service info (metadata) from the image service raster.
ArcGISImageServiceInfo arcGISImageServiceInfo = imageServiceRaster.ServiceInfo;
// Get the full extent envelope of the image service raster (the Charlotte, NC area).
Envelope myEnvelope = arcGISImageServiceInfo.FullExtent;
// Define a new view point from the full extent envelope.
Viewpoint viewPoint = new Viewpoint(myEnvelope);
// Zoom to the area of the full extent envelope of the image service raster.
await _myMapView.SetViewpointAsync(viewPoint);
// Get the rendering rule info (i.e. definitions of how the image should be drawn) info from the image service raster.
_renderRuleInfos = arcGISImageServiceInfo.RenderingRuleInfos;
// Define an index counter to be used by the UISegmentedControl.
int counter = 0;
// Loop through each rendering rule info.
foreach (RenderingRuleInfo renderingRuleInfo in _renderRuleInfos)
{
// Get the name of the rendering rule info.
string renderingRuleName = renderingRuleInfo.Name;
// Add the rendering rule info name to the UISegmentedControl.
_rulePicker.InsertSegment(renderingRuleName, counter, false);
// Increment the counter for adding segments into the UISegmentedControl.
counter++;
}
}
catch (Exception e)
{
new UIAlertView("Error", e.ToString(), (IUIAlertViewDelegate)null, "OK", null).Show();
}
}
public async Task LoadRenderingRules()
{
// Create a new image service raster from the Uri
ImageServiceRaster myImageServiceRaster = new ImageServiceRaster(_myUri);
// Load the image service raster
await myImageServiceRaster.LoadAsync();
// Get the ArcGIS image service info (metadata) from the image service raster
ArcGISImageServiceInfo myArcGISImageServiceInfo = myImageServiceRaster.ServiceInfo;
// Get the full extent envelope of the image service raster (the Charlotte, NC area)
Envelope myEnvelope = myArcGISImageServiceInfo.FullExtent;
// Define a new view point from the full extent envelope
Viewpoint myViewPoint = new Viewpoint(myEnvelope);
// Zoom to the area of the full extent envelope of the image service raster
await _myMapView.SetViewpointAsync(myViewPoint);
// Get the rendering rule info (i.e. definitions of how the image should be drawn) info from the image service raster
_myReadOnlyListRenderRuleInfos = myArcGISImageServiceInfo.RenderingRuleInfos;
// Define an index counter to be used by the UISegmentedControl
int myCounter = 0;
// Loop through each rendering rule info
foreach (RenderingRuleInfo myRenderingRuleInfo in _myReadOnlyListRenderRuleInfos)
{
// Get the name of the rendering rule info
string myRenderingRuleName = myRenderingRuleInfo.Name;
// Add the rendering rule info name to the UISegmentedControl
_myUISegmentedControl.InsertSegment(myRenderingRuleName, myCounter, false);
// Increment the counter for adding segments into the UISegmentedControl
myCounter = myCounter + 1;
}
}
private async void Initialize()
{
// Create new map with the streets basemap
Map myMap = new Map(Basemap.CreateStreets());
// Create a Uri to the image service raster
Uri myUri = new Uri("https://sampleserver6.arcgisonline.com/arcgis/rest/services/NLCDLandCover2001/ImageServer");
// Create new image service raster from the Uri
ImageServiceRaster myImageServiceRaster = new ImageServiceRaster(myUri);
try
{
// Load the image service raster
await myImageServiceRaster.LoadAsync();
// NOTE: This is the ASCII text for actual raw JSON string:
// ========================================================
//{
// "raster_function_arguments":
// {
// "z_factor":{"double":25.0,"type":"Raster_function_variable"},
// "slope_type":{"raster_slope_type":"none","type":"Raster_function_variable"},
// "azimuth":{"double":315,"type":"Raster_function_variable"},
// "altitude":{"double":45,"type":"Raster_function_variable"},
// "type":"Raster_function_arguments",
// "raster":{"name":"raster","is_raster":true,"type":"Raster_function_variable"},
// "nbits":{"int":8,"type":"Raster_function_variable"}
// },
// "raster_function":{"type":"Hillshade_function"},
// "type":"Raster_function_template"
//}
// Define the JSON string needed for the raster function
string theJSON_String =
@"{
""raster_function_arguments"":
{
""z_factor"":{ ""double"":25.0,""type"":""Raster_function_variable""},
""slope_type"":{ ""raster_slope_type"":""none"",""type"":""Raster_function_variable""},
""azimuth"":{ ""double"":315,""type"":""Raster_function_variable""},
""altitude"":{ ""double"":45,""type"":""Raster_function_variable""},
""type"":""Raster_function_arguments"",
""raster"":{ ""name"":""raster"",""is_raster"":true,""type"":""Raster_function_variable""},
""nbits"":{ ""int"":8,""type"":""Raster_function_variable""}
},
""raster_function"":{ ""type"":""Hillshade_function""},
""type"":""Raster_function_template""
}";
// Create a raster function from the JSON string using the static/Shared method called: RasterFunction.FromJson(json as String)
RasterFunction myRasterFunction = RasterFunction.FromJson(theJSON_String);
// NOTE: Depending on your platform/device, you could have alternatively created the raster function via a JSON string that is contained in a
// file on disk (ex: hillshade_simplified.json) via the constructor: Esri.ArcGISRuntime.Rasters.RasterFunction(path as String)
// Get the raster function arguments
RasterFunctionArguments myRasterFunctionArguments = myRasterFunction.Arguments;
// Get the list of names from the raster function arguments
IReadOnlyList <string> myRasterNames = myRasterFunctionArguments.GetRasterNames();
// Apply the first raster name and image service raster in the raster function arguments
myRasterFunctionArguments.SetRaster(myRasterNames[0], myImageServiceRaster);
// Create a new raster based on the raster function
Raster myRaster = new Raster(myRasterFunction);
// Create a new raster layer from the raster
RasterLayer myRasterLayer = new RasterLayer(myRaster);
// Add the raster layer to the maps layer collection
myMap.Basemap.BaseLayers.Add(myRasterLayer);
// Assign the map to the map view
_myMapView.Map = myMap;
// Get the service information (aka. metadata) about the image service raster
ArcGISImageServiceInfo myArcGISImageServiceInfo = myImageServiceRaster.ServiceInfo;
// Zoom the map to the extent of the image service raster (which also the extent of the raster layer)
await _myMapView.SetViewpointGeometryAsync(myArcGISImageServiceInfo.FullExtent);
// NOTE: The sample zooms to the extent of the ImageServiceRaster. Currently the ArcGIS Runtime does not
// support zooming a RasterLayer out beyond 4 times it's published level of detail. The sample uses
// MapView.SetViewpointCenterAsync() method to ensure the image shows when the app starts. You can see
// the effect of the image service not showing when you zoom out to the full extent of the image and beyond.
}
catch (Exception e)
{
new AlertDialog.Builder(this).SetMessage(e.ToString()).SetTitle("Error").Show();
}
}
private async void Initialize()
{
// Create new map with the streets basemap.
Map myMap = new Map(Basemap.CreateStreets());
// Create a URI to the image service raster.
Uri rasterUri = new Uri("https://sampleserver6.arcgisonline.com/arcgis/rest/services/NLCDLandCover2001/ImageServer");
// Create new image service raster from the URI.
ImageServiceRaster imageServiceRaster = new ImageServiceRaster(rasterUri);
try
{
// Load the image service raster.
await imageServiceRaster.LoadAsync();
// NOTE: This is the ASCII text for actual raw JSON string:
// ========================================================
//{
// "raster_function_arguments":
// {
// "z_factor":{"double":25.0,"type":"Raster_function_variable"},
// "slope_type":{"raster_slope_type":"none","type":"Raster_function_variable"},
// "azimuth":{"double":315,"type":"Raster_function_variable"},
// "altitude":{"double":45,"type":"Raster_function_variable"},
// "type":"Raster_function_arguments",
// "raster":{"name":"raster","is_raster":true,"type":"Raster_function_variable"},
// "nbits":{"int":8,"type":"Raster_function_variable"}
// },
// "raster_function":{"type":"Hillshade_function"},
// "type":"Raster_function_template"
//}
// Define the JSON string needed for the raster function
const string theJsonString = @"{
""raster_function_arguments"":
{
""z_factor"":{ ""double"":25.0,""type"":""Raster_function_variable""},
""slope_type"":{ ""raster_slope_type"":""none"",""type"":""Raster_function_variable""},
""azimuth"":{ ""double"":315,""type"":""Raster_function_variable""},
""altitude"":{ ""double"":45,""type"":""Raster_function_variable""},
""type"":""Raster_function_arguments"",
""raster"":{ ""name"":""raster"",""is_raster"":true,""type"":""Raster_function_variable""},
""nbits"":{ ""int"":8,""type"":""Raster_function_variable""}
},
""raster_function"":{ ""type"":""Hillshade_function""},
""type"":""Raster_function_template""
}";
// Create a raster function from the JSON string using the static/Shared method called: RasterFunction.FromJson(JSON as String).
RasterFunction rasterFunction = RasterFunction.FromJson(theJsonString);
// NOTE: You could have alternatively created the raster function via a JSON string that is contained in a
// file on disk (ex: hillshade_simplified.json) via the constructor: Esri.ArcGISRuntime.Rasters.RasterFunction(path as String).
// Get the raster function arguments.
RasterFunctionArguments rasterFunctionArguments = rasterFunction.Arguments;
// Get the list of names from the raster function arguments.
IReadOnlyList <string> myRasterNames = rasterFunctionArguments.GetRasterNames();
// Apply the first raster name and image service raster in the raster function arguments.
rasterFunctionArguments.SetRaster(myRasterNames[0], imageServiceRaster);
// Create a new raster based on the raster function.
Raster raster = new Raster(rasterFunction);
// Create a new raster layer from the raster.
RasterLayer rasterLayer = new RasterLayer(raster);
// Add the raster layer to the maps layer collection.
myMap.Basemap.BaseLayers.Add(rasterLayer);
// Assign the map to the map view.
_myMapView.Map = myMap;
// Get the service information (aka. metadata) about the image service raster.
ArcGISImageServiceInfo arcGISImageServiceInfo = imageServiceRaster.ServiceInfo;
// Zoom the map to the extent of the image service raster (which also the extent of the raster layer).
await _myMapView.SetViewpointGeometryAsync(arcGISImageServiceInfo.FullExtent);
}
catch (Exception e)
{
new UIAlertView("Error", e.ToString(), (IUIAlertViewDelegate)null, "OK", null).Show();
}
}
