本文整理汇总了C#中IMap.GetViewArea方法的典型用法代码示例。如果您正苦于以下问题：C# IMap.GetViewArea方法的具体用法？C# IMap.GetViewArea怎么用？C# IMap.GetViewArea使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IMap的用法示例。
在下文中一共展示了IMap.GetViewArea方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: UpdateMapData
/// <summary>
/// Updates a map with the latest ground / air data
/// </summary>
/// <param name="map">The map to update</param>
/// <returns></returns>
public async Task UpdateMapData(IMap map)
{
if (!IsSignedIn)
return;
RectLatLng area = map.GetViewArea();
await _messagesService.AddMessageAsync($"Map area {area.Top}, {area.Bottom}, {area.Left}, {area.Right}");
AAFeatureCollection mapData = await _aaClient.GetMapData(area);
await _messagesService.AddMessageAsync($"Map area Loaded {area.Top}, {area.Bottom}, {area.Left}, {area.Right}");
IOverlay airOverlay = map.GetOverlay("AAMapData.Air", true);
IOverlay groundOverlay = map.GetOverlay("AAMapData.Ground", true);
bool groundDataExcluded = mapData.ExcludedData.Any(i => i.SelectToken("detail.name")?.Value<string>() == "Ground Hazards");
groundOverlay.IsVisible = GroundDataDisplay;
airOverlay.IsVisible = AirDataDisplay;
// Only get the features that have no lower alt or start below 152m. Ignoring datum for now...
IEnumerable<Feature> features = mapData.Features.ToList();
foreach (Feature feature in features)
{
IOverlay overlay = string.Equals((string)feature.Properties.Get("category"), "airspace")
? airOverlay
: groundOverlay;
var altitude = ((JObject)feature.Properties.Get("altitudeFloor"))?.ToObject<Altitude>();
if (altitude == null || altitude.Meters <= 152)
{
if (!GroundDataDisplay)
{
if (overlay.PolygonExists(feature.Id))
continue;
}
}
else
{
if (!AirDataDisplay)
{
continue;
}
}
switch (feature.Geometry.Type)
{
case GeoJSONObjectType.Point:
break;
case GeoJSONObjectType.MultiPoint:
break;
case GeoJSONObjectType.LineString:
{
if (!overlay.LineExists(feature.Id))
{
var line = (LineString)feature.Geometry;
List<PointLatLng> coordinates = line.Coordinates.OfType<GeographicPosition>()
.Select(c => new PointLatLng(c.Latitude, c.Longitude))
.ToList();
overlay.AddLine(feature.Id, coordinates, new ColorInfo { StrokeColor = 0xFFFF0000 }, feature);
}
}
break;
case GeoJSONObjectType.MultiLineString:
break;
case GeoJSONObjectType.Polygon:
{
if (!overlay.PolygonExists(feature.Id))
{
var poly = (Polygon)feature.Geometry;
List<PointLatLng> coordinates =
poly.Coordinates[0].Coordinates.OfType<GeographicPosition>()
.Select(c => new PointLatLng(c.Latitude, c.Longitude))
.ToList();
ColorInfo colorInfo = feature.ToColorInfo();
colorInfo.StrokeColor = 0xFFFF0000;
overlay.AddPolygon(feature.Id, coordinates, colorInfo, feature);
}
}
break;
case GeoJSONObjectType.MultiPolygon:
break;
case GeoJSONObjectType.GeometryCollection:
break;
case GeoJSONObjectType.Feature:
break;
case GeoJSONObjectType.FeatureCollection:
break;
default:
throw new ArgumentOutOfRangeException();
//.........这里部分代码省略.........
示例2: UpdateMapData
/// <summary>
/// Updates a map with the latest ground / air data
/// </summary>
/// <param name="map">The map to update</param>
/// <returns></returns>
public async Task UpdateMapData(IMap map)
{
if (!IsSignedIn)
return;
RectLatLng area = map.GetViewArea();
await _messagesService.AddMessageAsync($"Map area {area.Top}, {area.Bottom}, {area.Left}, {area.Right}");
AAFeatureCollection mapData = await _aaClient.GetMapData(area);
// build the filter list
mapData.GetFilters();
// this ensures the user sees the results before its saved
_missionPlanner.SaveSetting("AAWings.Filters", JsonConvert.SerializeObject(FilteredOut));
await _messagesService.AddMessageAsync($"Map area Loaded {area.Top}, {area.Bottom}, {area.Left}, {area.Right}");
// add all items to cache
mapData.Features.ForEach(feature => cache[feature.Id] = feature);
// Only get the features that are enabled by default, and have not been filtered out
IEnumerable<Feature> features = mapData.Features.Where(feature => feature.IsEnabledByDefault() && feature.IsFilterOutItem(FilteredOut)).ToList();
ProcessFeatures(map, features);
}