ae tutorial

Scenecontrol + AE + scroll wheel Scaling To set the scroll wheel scaling for scenecontrol, you must define the delegation. Because scenecontrol does not have a wheel event, the from wheel event must be delegated. Public form1 (){Initializecomponent ();This. mousewheel + = new mouseeventhandler (this. sc1_wheel); // enter "This. mousewheel + =" in this place and press the tab key twice in a row.} Private void sc1_wheel (Object sender, system. Wind

The following method creates a bubble prompt box with AE: 1. VB. NET source code ''' ''' Create a text prompt box ''' ''' ''' ''' ''' ''' ''' ''' Public Function createtextelement (byval X as double, byval y as double, byval ptextstring as string, optional byval Ppoint as ipoint = nothing, optional byval pgraphicscontainer as igraphicscontainer = nothing) as ielement Dim pelement as ielement = new markerelementclass () Dim ptelement as ielement = new

Source code of 3D query based on AE Public type m_pobjarray Ifeature as ifeature Ilayername as string End type Public m_pfeaturearray () as m_pobjarray Private sub arcscenecontrol_onmousedown (byval button as long, byval shift as long, byval X as long, byval y as long)Arcscenecontrol. scenegraph. isnavigating = falseCall identify3dmap (x, y)End sub 'Input: Current 3D map, X coordinate, Y coordinate, reference public variable m_pfeaturearray'Output: s

During the AE development process, some objects must be temporarily stored, such as element, layer, map, and symbol. arcengine provides methods for serializing objects to save this information. All serializable objects support the ipersiststream interface (For details, refer to the help group documentation ). ixmlstream is also an important interface. for more information, see the help documentation. This article is inspired by the technical docume

Delete selected elements based on AE -- '// Deletes all features selected on the current layerPublic Sub DeleteAllSelectedFeatures (ByVal pFeatureCursor As IFeatureCursor, ByVal GeometryTypeStr As String)Dim pWorkspaceEdit As IWorkspaceEditDim pFeature As IFeature'If there are no features currently selected then nothing to doIf pFeatureCursor Is Nothing Then Exit SubTryDim bResponse As DialogResultBResponse = MsgBox ("are you sure to delete all" Ge

Source code of 3D query based on AE Public Type m_pObjArray IFeature As iFeature ILayerName As String End Type Public M_pFeatureArray () As m_pObjArray Private Sub ArcSceneControl_OnMouseDown (ByVal Button As Long, ByVal Shift As Long, ByVal X As Long, ByVal Y As Long)ArcSceneControl. SceneGraph. IsNavigating = FalseCall Identify3DMap (X, Y)End sub 'Input: Current 3D map, x coordinate, y coordinate, reference public variable M_pFeatureArray'Output: s

) // right-click and drag the red box{PSmallViewerMouseDownPt = new PointClass ();PSmallViewerMouseDownPt. PutCoords (e. mapX, e. mapY );AxMapControl1.CenterAt (pSmallViewerMouseDownPt ); IsTrackingSmallViewer = true;If (pSmallViewerEnvelope = null){PSmallViewerEnvelope = new MoveEnvelopeFeedbackClass ();PSmallViewerEnvelope. Display = axMapControl2.ActiveView. ScreenDisplay;PSmallViewerEnvelope. Symbol = (ISymbol) oFillobject;}PSmallViewerEnvelope. Start (pEn, pSmallViewerMouseDownPt ); AxMapCo

In AE development, we often encounter the need to export the current scenario in map, scene, and globe as an image. below is my summary of the export method, where two-dimensional can be exported to the memory or hard disk, you can also export the space data file of the image, which can only be exported to the hard disk in 3D, with the source code (VB. net), the usage is detailed in summary, ^ _ ^ ''' ''' Two-dimensional export the current scenario is

The toolbar has been encapsulated in AE. You only need to drag this control and set several properties to implement the corresponding functions in the desktop. (1) drag a arcengine toolbarcontrol on the form (2) Right-click toolbarcontrol --> Properties 1> under the items tab, select the tool to be added. You can see that commands and toolset do not include most of the functions of map browsing, property query, and space analysis. Customized deskt

There are many methods for reclassifying raster data. AE can be implemented in multiple ways, either by map algebra (implemented in RasterModel), IReclassOp, or Geoprocessor, it can even be implemented by traversing the raster. This is the most primitive method, but it may also be the most practical. The original raster Traversal method is used here. [Csharp] private void reclass (IRaster pRaster, float weight) {IRasterProps rasterProps = (IRasterProp

Delete an SDE layerpublic static bool Deletesdelayer (ESRI. ArcGIS.Geodatabase.IWorkspace m_pworkspace, String sdedsname){Try{ESRI. ArcGIS.Geodatabase.IEnumDatasetName penumdsname = M_pworkspace.get_datasetnames (ESRI. ArcGIS.Geodatabase.esriDatasetType.esriDTFeatureClass);Penumdsname.reset ();ESRI. ArcGIS.Geodatabase.IDatasetName psdedsname = Penumdsname.next ();while (psdedsname! = null){if (PSDEDSname.Name.ToUpper (). EndsWith (Sdedsname.toupper ())){Break}}Psdedsname = Penumdsname.next ();}i

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) { prband.computestatsandhist (); } Prrend.raster = pRaster; Prclassrend.classcount = 10; prrend.update (); Irgbcolor pfromcolor = new RgbColor () as irgbcolor; pfromcolor.red = 255; PfRomcolor.green = 0; PFromColor.Blue = 0; Irgbcolor ptocolor = new RgbColor () as irgbcolor; nbsp; ptocolor.red = 0; Ptocolor.green = 0; Ptocolor.blue = 255; Ialgorithmiccolorramp Colorramp = new Algorithmiccolorramp () as ialgorithmiccolorramp; colorramp.size = 10; Colorramp.fromcolor = pfromcolor; Co

if (openmxddialog.showdialog () = = DialogResult.OK) { pathmxd = openmxddialog.filename; if (pathmxd! = null) { if (Axmapc.checkmxfile (PATHMXD)) { threadprogress = new Thread (new Parameterizedthreadstart (showprogress)); Threadprogress.start (); Axmapc.loadmxfile (PATHMXD);}}} 　　

= Emptypathcolor asicolor;TenSimplelinesym.width =3; One AActiveView.ScreenDisplay.SetSymbol (Simplelinesym asisymbol); - - for(inti =0; i ) the { -Ipolyline Emptyline =Emptypathstrdrawlist[i].emptypathline; - ActiveView.ScreenDisplay.DrawPolyline (Emptyline); - } +}3. Polygon Drawing Code1 if(Drawpolygonlist! =NULL Drawpolygonlist.count >0)2 {3Irgbcolor color =NewRgbcolorclass ();4Color. Red =

if (axmapcontrol2.layercount{MessageBox.Show ("Please use this feature after loading the layer", "system hint", messageboxbuttons.ok,messageboxicon.warning);}Else{ILayer pLayer = axmapcontrol2.get_layer (0);Ifeaturelayer Pfeaturelayer = PLayer as Ifeaturelayer;Ifeatureselection pfeatureselection = (ifeatureselection) pfeaturelayer;//feature layer to feature selectionIqueryfilter pqueryfilter = new QueryFilter ();//(New query filter)Pqueryfilter.whereclause = "TBMJ Pfeatureselection.selectfeature

We often encounter refresh issues during AE programming. The following is my understanding of Refresh: Refresh layer:Partialrefresh (esriviewgeography, null, null)After the cache of each layer is set to true, each layer will be refreshed separately. No transparency is set, and the interaction will flash upon refreshing. Refresh all layers:Partialrefresh (esriviewgeography, null, null)Refresh the selected object:Partialrefresh (esriviewgeoselection,

Add dependencycompile ‘com.airbnb.android:lottie:2.2.0‘Go to download DemoCopy the assets folder from the example in the project to your new projectHttps://github.com/airbnb/lottie-android public class MainActivity extends AppCompatActivity { private LottieAnimationView lav_show; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); lav_show = (LottieAnimationView) findViewById(R.id.lav_show);

theInotify_add_watchmask argument and the Mask field of the inotify_event structure returned whenReading an inotify file descriptor is both bit masks identifying inotify events. The following bits can specified in mask when callingInotify_add_watchreturned in the Mask field returned byRead:in_accessFile was accessed (read) (*).In_attribMetadata changed, e.g, permissions, timestamps, extended attributes, link count (since Linux 2.6.25), UID, GID, etc. (*).In_close_writeFile opened for writing is

speed began to reduce, the final fall speed of 0. The trajectory of the stone movement is actually a complete parabola (i.e. the velocity curve): We convert the velocity curve to the displacement curve, and this curve is what we need: This curve is inferred from the real life scene, the concrete parameters are vague, but we have learned the true physical motion law: Object Motion is a process of accelerating from stillness to stopping deceleration. In the ordinary wor