public static IGeometry GetSearchGeometryFromGraphics(IGraphicsContainer graphics)
{
IGeometryCollection geometryBag = new GeometryBagClass();
IElement element;
IGeometry geometry;
graphics.Reset();
element = graphics.Next();
object before = Type.Missing;
object after = Type.Missing;
while (element != null)
{
geometry = element.Geometry;
if (geometry is IPolygon)
{
geometryBag.AddGeometry(geometry, ref before, ref after);
}
element = graphics.Next();
}
IGeometry searchGeometry = geometryBag as IGeometry;
return(searchGeometry);
}
private void method_4(IActiveView iactiveView_1, long long_0)
{
IOutputRasterSettings displayTransformation;
if (iactiveView_1 is IMap)
{
displayTransformation = iactiveView_1.ScreenDisplay.DisplayTransformation as IOutputRasterSettings;
displayTransformation.ResampleRatio = (int)long_0;
}
else if (iactiveView_1 is IPageLayout)
{
IMapFrame frame;
IActiveView map;
displayTransformation = iactiveView_1.ScreenDisplay.DisplayTransformation as IOutputRasterSettings;
displayTransformation.ResampleRatio = (int)long_0;
IGraphicsContainer container = iactiveView_1 as IGraphicsContainer;
container.Reset();
for (IElement element = container.Next(); element != null; element = container.Next())
{
if (element is IMapFrame)
{
frame = element as IMapFrame;
map = frame.Map as IActiveView;
displayTransformation = map.ScreenDisplay.DisplayTransformation as IOutputRasterSettings;
displayTransformation.ResampleRatio = (int)long_0;
}
}
frame = null;
container = null;
map = null;
}
displayTransformation = null;
}
/// <summary>
/// Method used to remove graphics from the graphics container
/// Elements are tagged with a GUID on the IElementProperties.Name property
/// </summary>
/// <param name="gc">map graphics container</param>
/// <param name="list">list of GUIDs to remove</param>
internal void RemoveGraphics(IGraphicsContainer gc, List <string> list)
{
if (gc == null || !list.Any())
{
return;
}
var elementList = new List <IElement>();
gc.Reset();
var element = gc.Next();
while (element != null)
{
var eleProps = element as IElementProperties;
if (list.Contains(eleProps.Name))
{
elementList.Add(element);
}
element = gc.Next();
}
foreach (var ele in elementList)
{
gc.DeleteElement(ele);
}
list.Clear();
elementList.Clear();
RaisePropertyChanged(() => HasMapGraphics);
}
public void ClearMapFromOldGraphics()
{
var actualGraphics = new List <GraphicElement>(milSpaceSessionGraphics);
actualGraphics.AddRange(milSpaceCalculatingGraphics);
graphics.Reset();
IElement ge = graphics.Next();
while (ge != null)
{
var graphic = actualGraphics.FirstOrDefault(graph => graph.Element.Equals(ge));
if (graphic != null)
{
actualGraphics.Remove(graphic);
}
else
{
graphics.DeleteElement(ge);
}
ge = graphics.Next();
}
graphics.Reset();
activeView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
}
public static IMapFrame FindFocusMapFrame(IPageLayout ipageLayout_0)
{
IActiveView view = ipageLayout_0 as IActiveView;
IMap focusMap = view.FocusMap;
IGraphicsContainer container = ipageLayout_0 as IGraphicsContainer;
container.Reset();
for (IElement element = container.Next(); element != null; element = container.Next())
{
if (element is IMapFrame)
{
if (focusMap == (element as IMapFrame).Map)
{
return(element as IMapFrame);
}
}
else if (element is IGroupElement)
{
IMapFrame frame2 = FindFocusMapFrame(element as IGroupElement, focusMap);
if (frame2 != null)
{
return(frame2);
}
}
}
return(null);
}
private void CopyMap(IMap fromCopyMap, IMap toCopyMap)
{
int num;
toCopyMap.ClearLayers();
toCopyMap.DistanceUnits = fromCopyMap.DistanceUnits;
toCopyMap.MapUnits = fromCopyMap.MapUnits;
toCopyMap.SpatialReferenceLocked = false;
toCopyMap.SpatialReference = fromCopyMap.SpatialReference;
toCopyMap.Name = fromCopyMap.Name;
for (num = fromCopyMap.LayerCount - 1; num >= 0; num--)
{
ILayer layer = fromCopyMap.get_Layer(num);
toCopyMap.AddLayer(layer);
}
IGraphicsContainer container = fromCopyMap as IGraphicsContainer;
container.Reset();
IElement element = container.Next();
int zorder = 0;
while (element != null)
{
(toCopyMap as IGraphicsContainer).AddElement(element, zorder);
zorder++;
element = container.Next();
}
ITableCollection tables = fromCopyMap as ITableCollection;
for (num = 0; num < tables.TableCount; num++)
{
(toCopyMap as ITableCollection).AddTable(tables.get_Table(num));
}
(toCopyMap as IActiveView).Extent = (fromCopyMap as IActiveView).Extent;
}
/// <summary>
/// 获得图饰位置
/// </summary>
void GetSurroundPose()
{
m_mapSurroundList = new List <MapSurroundEntity>();
IGraphicsContainer graphicsContainer = axPageLayoutControl1.PageLayout as IGraphicsContainer;
IEnvelope mapEnvelop = (graphicsContainer.FindFrame(axPageLayoutControl1.ActiveView.FocusMap) as IElement).Geometry.Envelope;
graphicsContainer.Reset();
IElement element = graphicsContainer.Next();
while (element != null)
{
if (element is IMapFrame)
{
element = graphicsContainer.Next();
continue;
}
else
{
IEnvelope envelop = element.Geometry.Envelope as IEnvelope;
MapSurroundEntity mapSurroundEntity = new MapSurroundEntity();
mapSurroundEntity.left = envelop.XMin - mapEnvelop.XMin;
mapSurroundEntity.right = mapEnvelop.XMax - envelop.XMax;
mapSurroundEntity.top = mapEnvelop.YMax - envelop.YMax;
mapSurroundEntity.bottom = envelop.YMin - mapEnvelop.YMin;
mapSurroundEntity.width = envelop.Width;
mapSurroundEntity.height = envelop.Height;
mapSurroundEntity.element = element;
m_mapSurroundList.Add(mapSurroundEntity);
}
element = graphicsContainer.Next();
}
}
private void method_5(IActiveView iactiveView_0)
{
IGraphicsContainer graphicsContainer = iactiveView_0.GraphicsContainer;
IMapFrame frame = graphicsContainer.FindFrame(iactiveView_0.FocusMap) as IMapFrame;
graphicsContainer.Reset();
IElement item = graphicsContainer.Next();
List <IElement> list = new List <IElement>();
while (item != null)
{
if (item != frame)
{
list.Add(item);
}
item = graphicsContainer.Next();
}
for (int i = 0; i < list.Count; i++)
{
try
{
graphicsContainer.DeleteElement(list[i]);
}
catch
{
}
}
}
private void method_1(IMap imap_0, IMap imap_1)
{
int num;
imap_1.ClearLayers();
imap_1.DistanceUnits = imap_0.DistanceUnits;
imap_1.MapUnits = imap_0.MapUnits;
imap_1.SpatialReferenceLocked = false;
imap_1.SpatialReference = imap_0.SpatialReference;
imap_1.Name = imap_0.Name;
for (num = imap_0.LayerCount - 1; num >= 0; num--)
{
ILayer layer = imap_0.get_Layer(num);
imap_1.AddLayer(layer);
}
IGraphicsContainer container = imap_0 as IGraphicsContainer;
container.Reset();
IElement element = container.Next();
int zorder = 0;
while (element != null)
{
(imap_1 as IGraphicsContainer).AddElement(element, zorder);
zorder++;
element = container.Next();
}
ITableCollection tables = imap_0 as ITableCollection;
for (num = 0; num < tables.TableCount; num++)
{
(imap_1 as ITableCollection).AddTable(tables.get_Table(num));
}
(imap_1 as IActiveView).Extent = (imap_0 as IActiveView).Extent;
}
internal IMapFrame GetFocusMapFrame(IPageLayout ipageLayout_0)
{
IMapFrame mapFrame;
IGraphicsContainer ipageLayout0 = ipageLayout_0 as IGraphicsContainer;
ipageLayout0.Reset();
IElement element = ipageLayout0.Next();
while (true)
{
if (element == null)
{
mapFrame = null;
break;
}
else if (element is IMapFrame)
{
mapFrame = element as IMapFrame;
break;
}
else
{
element = ipageLayout0.Next();
}
}
return(mapFrame);
}
private void ClearElements(IActiveView pActiveView)
{
IGraphicsContainer graphicsContainer = pActiveView.GraphicsContainer;
IMapFrame mapFrame = graphicsContainer.FindFrame(pActiveView.FocusMap) as IMapFrame;
(mapFrame as IMapGrids).ClearMapGrids();
graphicsContainer.Reset();
IElement element = graphicsContainer.Next();
List <IElement> list = new List <IElement>();
while (element != null)
{
if (element != mapFrame)
{
list.Add(element);
}
element = graphicsContainer.Next();
}
try
{
graphicsContainer.DeleteAllElements();
graphicsContainer.Reset();
element = graphicsContainer.Next();
if (element != null)
{
graphicsContainer.DeleteElement(element);
}
graphicsContainer.AddElement(mapFrame as IElement, -1);
pActiveView.FocusMap = mapFrame.Map;
}
catch (Exception)
{
}
}
private void simpleButton5_Click(object sender, EventArgs e)
{
bEditOrNot = true;
int i = listView1.SelectedItems.Count;
if (i == 0)
{
MessageBox.Show("请选择需要删除的记录", "用户提示");
return;
}
pGraphic.Reset();
string name = listView1.SelectedItems[0].SubItems[0].Text;
IElement pElement = pGraphic.Next();
while (pElement != null)
{
IElementProperties pd = pElement as IElementProperties;
if (pd.Name == name)
{
pGraphic.DeleteElement(pElement);
}
pElement = pGraphic.Next();
}
axMapControl1.Refresh();
this.listView1.Items.Remove(this.listView1.SelectedItems[0]);
for (int j = 0; j < listView1.Items.Count; j++)
{
listView1.Items[j].SubItems[0].Text = (j + 1).ToString();
}
MessageBox.Show("删除成功，请保存更改！", "用户提示", MessageBoxButtons.OK
, MessageBoxIcon.Asterisk);
}
private void method_9()
{
try
{
IGraphicsContainer graphicsContainer = base.m_pActiveView.GraphicsContainer;
graphicsContainer.Reset();
IElement element = graphicsContainer.Next();
while (element != null)
{
IElementProperties properties = (IElementProperties)element;
if (properties.Name == "TK")
{
goto Label_004A;
}
element = graphicsContainer.Next();
}
return;
Label_004A:
graphicsContainer.DeleteElement(element);
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
}
}
/// <summary>
/// 替换原地图容器中的元素为模板的元素
/// </summary>
/// <param name="tempGraph">模板</param>
/// <param name="oldMapFrame">原地图容器</param>
/// <returns></returns>
private static IArray ReplaceOldIntoTempElement(IGraphicsContainer tempGraph, IMapFrame oldMapFrame)
{
tempGraph.Reset();
IElement tempElement = tempGraph.Next();
IArray pArray = new ArrayClass();
while (tempElement != null)
{
if (tempElement is IMapFrame)
{
//改变布局边框几何形状
IElement pMapFrameElement = oldMapFrame as IElement;
if (pMapFrameElement != null)
{
pMapFrameElement.Geometry = tempElement.Geometry;
}
}
else
{
IMapSurroundFrame pTempMapSurroundFrame = tempElement as IMapSurroundFrame;
if (pTempMapSurroundFrame != null)
{
//设置地图框架
pTempMapSurroundFrame.MapFrame = oldMapFrame;
}
//获取图例指北针等元素
pArray.Add(tempElement);
}
tempElement = tempGraph.Next();
}
return(pArray);
}
//Checks the element names of the page layout
//returns boolean true if duplicates exist
public static Boolean checkLayoutTextElementsForDuplicates(IMxDocument pMxDoc, string pFrameName)
{
//create list to store name of text elements
List <string> lst = new List <string>();
Boolean duplicates;
//check if the frame passed exists in the map document
if (PageLayoutProperties.detectMapFrame(pMxDoc, pFrameName))
{
//Declare variables
IPageLayout pLayout = pMxDoc.PageLayout;
IGraphicsContainer pGraphics = pLayout as IGraphicsContainer;
pGraphics.Reset();
IElement element = new TextElementClass();
IElementProperties2 pElementProp;
ITextElement pTextElement;
//loop through the text elements in the frame
try
{
element = (IElement)pGraphics.Next();
while (element != null)
{
if (element is ITextElement)
{
pTextElement = element as ITextElement;
pElementProp = element as IElementProperties2;
//where the name is not blank
//System.Diagnostics.Debug.WriteLine(pElementProp.Name);
if (pElementProp.Name != "")
{
//store the name of the elements and the values in the dictionary as pairs
lst.Add(pElementProp.Name);
}
}
element = pGraphics.Next() as IElement;
}
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Error detecting duplicate elements from the map frame");
System.Diagnostics.Debug.WriteLine(e);
}
}
//Find if duplicates exist
int duplicateCount = lst.Count() - lst.Distinct().Count();
if (duplicateCount != 0)
{
duplicates = true;
return(duplicates);
}
else
{
duplicates = false;
return(duplicates);
}
}
/// <summary>
/// 清除布局所有要素，除了框架
/// </summary>
/// <param name="pageLayoutControl">布局控件</param>
public static void ClearAllLayoutData(AxPageLayoutControl pageLayoutControl)
{
if (pageLayoutControl == null)
{
return;
}
IGraphicsContainer curGraph = pageLayoutControl.ActiveView as IGraphicsContainer;
if (curGraph == null)
{
return;
}
curGraph.Reset();
IElement pElement = curGraph.Next();
while (pElement != null)
{
//不是MapFrame框架对象，则删除
if (!(pElement is IMapFrame))
{
curGraph.DeleteElement(pElement);
//必须重置，不然会叠加之前的元素
curGraph.Reset();
}
pElement = curGraph.Next();
}
pageLayoutControl.Refresh();
}
protected override void OnClick()
{
//
// TODO: Sample code showing how to access button host
//
ArcMap.Application.CurrentTool = null;
ElementListForm frm = new ElementListForm();
frm.AlignHandler = new AlignElementDelegate(AlignElementMethod);
IGraphicsContainer cont = ArcMap.Document.ActiveView as IGraphicsContainer;
cont.Reset();
IElement ele = cont.Next();
while (ele != null)
{
IElementProperties3 pros = ele as IElementProperties3;
if (pros.Name != "")
{
frm.AddItem(pros.Name);
}
ele = cont.Next();
}
frm.ShowDialog();
}
private void timer1_Tick(object sender, System.EventArgs e)
{
//Distance used in calculating the new point location
double dMaxDistance = m_MapControl.Extent.Width / 20;
//Loop through the elements in the GraphicContainer and get the IElement interface
m_GraphicsContainer.Reset();
IElement element = m_GraphicsContainer.Next();
Random r = new Random();
while (element != null)
{
//QI for IElementProperties interface from IElement interface
IElementProperties elementProperties = (IElementProperties)element;
//If agent has not been located
if (elementProperties.Name == false.ToString())
{
//Get hold of the IPoint interface from the elements geometry
IPoint point = (IPoint)element.Geometry;
//Create new random point coordinates based upon current location
point.X = point.X - (dMaxDistance * (r.NextDouble() - 0.5));
point.Y = point.Y - (dMaxDistance * (r.NextDouble() - 0.5));
//Set the point onto the GeographicCoordinateSystem - WHERE the point came FROM
point.Project(m_GeographicCoordinateSystem);
if (point.IsEmpty == false)
{
//Ensure that the point is within the horizon of the coordinate system. Mollweide
//has a generic rectangular horizon with the following limits:
//-179.999988540844, -90.000000000000, 179.999988540844, 90.000000000000
if (point.X > 179.999988540844)
{
point.X = point.X - 359.999977081688;
}
else if (point.X < -179.999988540844)
{
point.X = point.X + 359.999977081688;
}
if (point.Y > 89.891975) //fudge value to clip near poles
{
point.Y = point.Y - 179.78395;
}
else if (point.Y < -89.891975) //fudge value to clip near poles
{
point.Y = point.Y + 179.78395;
}
//Project the point onto the displays current spatial reference
//WHERE the point is going TO
point.Project(m_ProjectedCoordinateSystem);
element.Geometry = point;
}
}
element = m_GraphicsContainer.Next();
}
//Refresh the graphics
m_MapControl.Refresh(esriViewDrawPhase.esriViewGraphics, Type.Missing, Type.Missing);
}
/// <summary>
/// Add the mapscale text to the Graphic Container. Places this text under the scale bar.
/// </summary>
/// <param name="sMapScale"></param>
public override void addMapScaleText(string sMapScale)
{
CSpatialSubs oSpatialSubs = new CSpatialSubs();
IMxDocument pMxDoc = (IMxDocument)this.App.Document;
IGraphicsContainer pGC = (IGraphicsContainer)pMxDoc.PageLayout;
IMapSurroundFrame pMSFrame = null;
IEnvelope pEnv = null;
ITextSymbol pTextSym = null;
ITextElement pTextElem = null;
try
{
//Locate the scalebar in the graphics container because we
//want to put the mapscale right under it.
//A scalebar is contained within a MapSurroundFrame.
pGC.Reset();
IElement pElem = pGC.Next();
while (pElem != null)
{
if (pElem is IMapSurroundFrame)
{
pMSFrame = (IMapSurroundFrame)pElem;
if (pMSFrame.Object is IScaleBar)
{
break; // we got the scalebar
}
}
pElem = pGC.Next();
}
pEnv = new EnvelopeClass();
//get the envelope of the scalebar
pElem.QueryBounds(pMxDoc.ActiveView.ScreenDisplay, pEnv);
double xMin = SPrintConst.MapscaleText_XMin * base.XFactor;
double xMax = SPrintConst.MapscaleText_XMax * base.XFactor;
double yMax = pEnv.YMin - 0.02; //this is the min y value of the scalebar envelope - .02
double yMin = SPrintConst.MapscaleText_YMin * base.YFactor;
//Set pMapscaleText symbol to the textsymbol
pTextSym = oSpatialSubs.createTextSymbol(0, 0, 0, 7 * this.YFactor, esriTextHorizontalAlignment.esriTHALeft, esriTextVerticalAlignment.esriTVATop, "Arial");
pTextElem = oSpatialSubs.addTextToGraphicsContainer(pGC, pTextSym, xMin, xMax, yMin, yMax, sMapScale);
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show("Errors: CPortraitLayout:addMapScaleText()\r\n" + ex.Message, "Errors occurred", System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Error);
}
finally
{
oSpatialSubs.Dispose();
pMxDoc = null;
pGC = null;
pMSFrame = null;
pEnv = null;
pTextSym = null;
pTextElem = null;
}
}
private void method_0()
{
IElement element2;
IGraphicsContainerSelect select = this.ipageLayout_0 as IGraphicsContainerSelect;
if (select.ElementSelectionCount > 0)
{
this.rdoPlaceSelectElement.Enabled = true;
this.rdoPlaceSelectElement.Checked = true;
this.rdoPlaceAllElement.Checked = false;
this.rdoPlacePageMargine.Checked = false;
IEnumElement selectedElements = select.SelectedElements;
selectedElements.Reset();
element2 = selectedElements.Next();
if ((select.ElementSelectionCount == 1) && (element2 is IFrameElement))
{
this.chkNewFrameElement.Checked = false;
this.chkNewFrameElement.Enabled = true;
this.chkGroup.Checked = false;
this.chkGroup.Enabled = false;
this.iframeElement_0 = element2 as IFrameElement;
this.method_1(element2 as IFrameElement);
}
else
{
this.chkNewFrameElement.Checked = true;
this.chkNewFrameElement.Enabled = false;
this.chkGroup.Checked = false;
this.chkGroup.Enabled = true;
}
}
else
{
this.rdoPlaceSelectElement.Enabled = false;
this.rdoPlaceSelectElement.Checked = false;
this.rdoPlaceAllElement.Checked = true;
this.rdoPlacePageMargine.Checked = false;
IGraphicsContainer container = this.ipageLayout_0 as IGraphicsContainer;
container.Reset();
element2 = container.Next();
if (!((container.Next() == null) && (element2 is IFrameElement)))
{
this.chkNewFrameElement.Checked = true;
this.chkNewFrameElement.Enabled = false;
this.chkGroup.Checked = false;
this.chkGroup.Enabled = true;
}
else
{
this.chkNewFrameElement.Checked = false;
this.chkNewFrameElement.Enabled = true;
this.chkGroup.Checked = false;
this.chkGroup.Enabled = false;
this.iframeElement_0 = element2 as IFrameElement;
this.method_1(element2 as IFrameElement);
}
}
}
public Collection GetMapFrameCollection(IPageLayout pPageLayout, string sMapClassifyName)
{
try
{
if (pPageLayout == null)
{
return(null);
}
IActiveView view = null;
view = pPageLayout as IActiveView;
if (view == null)
{
return(null);
}
IGraphicsContainer graphicsContainer = null;
graphicsContainer = view.GraphicsContainer;
if (graphicsContainer == null)
{
return(null);
}
graphicsContainer.Reset();
Collection pMapColl = null;
pMapColl = new Collection();
IElement item = null;
for (item = graphicsContainer.Next(); item != null; item = graphicsContainer.Next())
{
if (item is IMapFrame)
{
IElementProperties properties = null;
properties = item as IElementProperties;
if (string.IsNullOrEmpty(sMapClassifyName))
{
pMapColl.Add(item, "", null, null);
}
else if (Strings.LCase(Strings.Mid(Convert.ToString(properties.CustomProperty), 4)) == Strings.LCase(sMapClassifyName))
{
pMapColl.Add(item, "", null, null);
}
}
else if (item is IGroupElement)
{
this.GetMapFrameCollGroupRecursion(item as IGroupElement, sMapClassifyName, pMapColl);
}
}
if (pMapColl.Count <= 0)
{
return(null);
}
return(pMapColl);
}
catch (Exception exception)
{
this.mErrOpt.ErrorOperate(this.mSubSysName, "FunFactory.ElementFun", "GetMapFrameCollection", exception.GetHashCode().ToString(), exception.Source, exception.Message, "", "", "");
return(null);
}
}
//Gets all the text elements and their values from a map frame.
//returns a dictionary with key value pairs of these element / values
public static Dictionary <string, string> getLayoutTextElements(IMxDocument pMxDoc, string pFrameName)
{
//create dictionary to story element values
Dictionary <string, string> dict = new Dictionary <string, string>();
//check if the frame passed exists in the map document
if (PageLayoutProperties.detectMapFrame(pMxDoc, pFrameName))
{
//Declare variables
IPageLayout pLayout = pMxDoc.PageLayout;
IGraphicsContainer pGraphics = pLayout as IGraphicsContainer;
pGraphics.Reset();
IElement element = new TextElementClass();
IElementProperties2 pElementProp;
ITextElement pTextElement;
//loop through the text elements in the frame
try
{
element = (IElement)pGraphics.Next();
while (element != null)
{
if (element is ITextElement)
{
pTextElement = element as ITextElement;
pElementProp = element as IElementProperties2;
//where the name is not blank
//System.Diagnostics.Debug.WriteLine(pElementProp.Name);
if (pElementProp.Name != "")
{
//store the name of the elements and the values in the dictionary as pairs
dict.Add(pElementProp.Name, pTextElement.Text);
}
}
element = pGraphics.Next() as IElement;
}
//return the dictionary
return(dict);
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Error getting elements from the map frame");
System.Diagnostics.Debug.WriteLine(e);
return(null);
}
}
else
{
return(null);
}
}
/// <summary>
/// Creates an <see cref="IEnumerable{T}" /> from an <see cref="IElement" />
/// </summary>
/// <param name="source">An <see cref="IGraphicsContainer" /> to create an <see cref="IEnumerable{T}" /> from.</param>
/// <returns>An <see cref="IEnumerable{T}" /> that contains the layers from the input source.</returns>
public static IEnumerable <IElement> AsEnumerable(this IGraphicsContainer source)
{
if (source != null)
{
source.Reset();
IElement element = source.Next();
while (element != null)
{
yield return(element);
element = source.Next();
}
}
}
internal static IMapFrame GetFocusMapFrame(IPageLayout pPageLayout)
{
IGraphicsContainer container = pPageLayout as IGraphicsContainer;
container.Reset();
for (IElement element = container.Next(); element != null; element = container.Next())
{
if (element is IMapFrame)
{
return(element as IMapFrame);
}
}
return(null);
}
/// <summary>
/// Method used to remove graphics from the graphics container
/// Elements are tagged with a GUID on the IElementProperties.Name property
/// Removes graphics from all tabs, not just the tab that is currently active
/// </summary>
private void RemoveGraphics(IGraphicsContainer gc, bool removeOnlyTemporary)
{
if (gc == null || !GraphicsList.Any())
{
return;
}
// keep track of the graphics that we need to remove from the GraphicsList
List <Graphic> removedGraphics = new List <Graphic>();
var elementList = new List <IElement>();
gc.Reset();
var element = gc.Next();
while (element != null)
{
var eleProps = element as IElementProperties;
foreach (Graphic graphic in GraphicsList)
{
if (graphic.UniqueId.Equals(eleProps.Name))
{
if (graphic.IsTemp == removeOnlyTemporary)
{
elementList.Add(element);
removedGraphics.Add(graphic);
}
break;
}
}
element = gc.Next();
}
foreach (var ele in elementList)
{
gc.DeleteElement(ele);
}
// clean up the GraphicsList and remove the necessary graphics from it
foreach (Graphic graphic in removedGraphics)
{
GraphicsList.Remove(graphic);
}
elementList.Clear();
RaisePropertyChanged(() => HasMapGraphics);
}
private void ToolStripMenuItemQueryByGraphics_Click(object sender, EventArgs e)
{
try
{
//首先清空地图选择集，以进行后续的选择操作
axMapControl.Map.FeatureSelection.Clear();
//使用IGraphicsContainer接口获取地图中的各个图形（Graphics）
IGraphicsContainer graphicsContainer = axMapControl.Map as IGraphicsContainer;
//重置访问图形的游标，使IGraphicsContainer接口的Next()方法定位于地图中的第一个图形
graphicsContainer.Reset();
//使用IElement接口操作所获取第一个图形
IElement element = graphicsContainer.Next();
//获取图形的几何信息
IGeometry geometry = element.Geometry;
//使用第一个图形的几何形状来选择地图中的要素。
axMapControl.Map.SelectByShape(geometry, null, false);
//进行部分刷新以显示最新的选择集
axMapControl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, axMapControl.ActiveView.Extent);
}
catch (Exception ex)
{
//MessageBox.Show(ex.Message);
}
}
//创建所有要素的轮廓线
private void CreateAllElementFrame()
{
IGraphicsContainer pGraphicsContainer = m_hookHelper.ActiveView.GraphicsContainer;
IElement pElement = pGraphicsContainer.Next();
//IEnumElement pp =
IMapSurroundFrame pMapsurroundFrame = new MapSurroundFrameClass();
pMapsurroundFrame.MapSurround = pGraphicsContainer as IMapSurround;
IFrameProperties pFrameProperties = pMapsurroundFrame as IFrameProperties;
//边框的间距和圆角
if (SymbolBorder != null)
{
if (this.txtBorderGap.Text != null)
{
SymbolBorder.Gap = double.Parse(this.txtBorderGap.Text);
}
if (this.txtBorderAngle.Text != null)
{
SymbolBorder.CornerRounding = short.Parse(this.txtBorderAngle.Text);
}
}
if (SymbolBackground != null)
{
if (txtBackgroundGap.Text != null)
{
SymbolBackground.Gap = double.Parse(this.txtBackgroundGap.Text);
}
if (txtBackgroundAngle.Text != null)
{
SymbolBackground.CornerRounding = short.Parse(this.txtBackgroundAngle.Text);
}
}
if (SymbolShadow != null)
{
if (txtShadowX.Text != null)
{
SymbolShadow.HorizontalSpacing = double.Parse(this.txtShadowX.Text);
}
if (txtShadowY.Text != null)
{
SymbolShadow.VerticalSpacing = double.Parse(this.txtShadowY.Text);
}
if (txtShadowAngle.Text != null)
{
SymbolShadow.CornerRounding = short.Parse(this.txtShadowAngle.Text);
}
}
//边框
pFrameProperties.Border = SymbolBorder;
//背景
pFrameProperties.Background = SymbolBackground;
//阴影
pFrameProperties.Shadow = SymbolShadow;
}
/// <summary>
/// Clear Graphics
/// </summary>
internal void ClearGraphics()
{
try
{
IMxDocument mxDocument = ArcMap.Application.Document as IMxDocument;
IActiveView activeView = mxDocument.ActiveView;
IGraphicsContainer graphicsContainer = activeView.GraphicsContainer;
//Pre fresh the Graphics Container
activeView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
//Loop thro the Elements Clearing the Locator Graphics
graphicsContainer.Reset();
for (IElement element = graphicsContainer.Next(); element != null; element = graphicsContainer.Next())
{
IElementProperties elementProperties = element as IElementProperties;
if (elementProperties.Name == LOCATOR_ELEMENT_NAME)
{
graphicsContainer.DeleteElement(element);
}
}
this.CalloutAdded = false;
}
catch (Exception ex)
{
ShowError(ex);
}
}
private void ClearElement(IActiveView actiview, string elementType)
{
IGraphicsContainer graphicsContainer = actiview.GraphicsContainer;
graphicsContainer.Reset();
IElement element = graphicsContainer.Next();
while (element != null)
{
if (((IElementProperties)element).Name == elementType)
{
graphicsContainer.DeleteElement(element);
}
element = graphicsContainer.Next();
}
actiview.Refresh();
}
private bool method_8()
{
bool flag = false;
try
{
IGraphicsContainer graphicsContainer = base.m_pActiveView.GraphicsContainer;
graphicsContainer.Reset();
IElement element = graphicsContainer.Next();
IEnvelope envelope = null;
while (element != null)
{
IElementProperties properties = (IElementProperties)element;
if (properties.Name == "TK")
{
goto Label_005D;
}
if (element is IMapFrame)
{
goto Label_009D;
}
element = graphicsContainer.Next();
}
return(flag);
Label_005D:
envelope = element.Geometry.Envelope;
base.LeftLow = envelope.LowerLeft;
base.LeftUp = envelope.UpperLeft;
base.RightLow = envelope.LowerRight;
base.RightUp = envelope.UpperRight;
return(true);
Label_009D:
envelope = element.Geometry.Envelope;
base.LeftLow = envelope.LowerLeft;
base.LeftUp = envelope.UpperLeft;
base.RightLow = envelope.LowerRight;
base.RightUp = envelope.UpperRight;
return(true);
}
catch (Exception)
{
return(false);
}
}
public static IGeometry GetSearchGeometryFromGraphics(IGraphicsContainer graphics)
{
IGeometryCollection geometryBag = new GeometryBagClass();
IElement element;
IGeometry geometry;
graphics.Reset();
element = graphics.Next();
object before = Type.Missing;
object after = Type.Missing;
while (element != null)
{
geometry = element.Geometry;
if (geometry is IPolygon)
geometryBag.AddGeometry(geometry, ref before, ref after);
element = graphics.Next();
}
IGeometry searchGeometry = geometryBag as IGeometry;
return searchGeometry;
}
/// <summary>
/// Method used to remove graphics from the graphics container
/// Elements are tagged with a GUID on the IElementProperties.Name property
/// Removes graphics from all tabs, not just the tab that is currently active
/// </summary>
private void RemoveGraphics(IGraphicsContainer gc, bool removeOnlyTemporary)
{
if (gc == null || !GraphicsList.Any())
return;
// keep track of the graphics that we need to remove from the GraphicsList
List<Graphic> removedGraphics = new List<Graphic>();
var elementList = new List<IElement>();
gc.Reset();
var element = gc.Next();
while (element != null)
{
var eleProps = element as IElementProperties;
foreach (Graphic graphic in GraphicsList)
{
if (graphic.UniqueId.Equals(eleProps.Name))
{
if (graphic.IsTemp == removeOnlyTemporary)
{
elementList.Add(element);
removedGraphics.Add(graphic);
}
break;
}
}
element = gc.Next();
}
foreach (var ele in elementList)
{
gc.DeleteElement(ele);
}
// clean up the GraphicsList and remove the necessary graphics from it
foreach (Graphic graphic in removedGraphics)
{
GraphicsList.Remove(graphic);
}
elementList.Clear();
RaisePropertyChanged(() => HasMapGraphics);
}
/// <summary>
/// Method used to remove graphics from the graphics container
/// Elements are tagged with a GUID on the IElementProperties.Name property
/// </summary>
/// <param name="gc">map graphics container</param>
/// <param name="list">list of GUIDs to remove</param>
internal void RemoveGraphics(IGraphicsContainer gc, List<string> list)
{
if (gc == null || !list.Any())
return;
var elementList = new List<IElement>();
gc.Reset();
var element = gc.Next();
while (element != null)
{
var eleProps = element as IElementProperties;
if (list.Contains(eleProps.Name))
{
elementList.Add(element);
}
element = gc.Next();
}
foreach (var ele in elementList)
{
gc.DeleteElement(ele);
}
list.Clear();
elementList.Clear();
RaisePropertyChanged(() => HasMapGraphics);
}
