VectorDraw Developer Framework试用版下载
问：
请问如何获得Javascript Webcontrol默认属性值。
答：
为了使vds文件的大小较小，我们不保存一些默认值，因此假定未定义属性时，它通常使用默认值。在下面，您可以查看它们使用默认值的所有属性，以及如何获取正确值的示例。
vdDocument -> object return by vdcanvas.GetDocument() method ShowHatches : true BlockStdLayerOper :BlockStdLayerOperFlag.Default = 6 LineTypeScale : 1.0 ShowHidenEdges : falsevd3dFace EdgeVisibility : 0vdAttrib InVisibleMode : false ValueString : ""(empty string) TagString : ""(empty string) TextString : ""(empty string) IsConstant : falsevdAttribDef InVisibleMode : false ValueString : ""(empty string) PromptString : ""(empty string) TagString : ""(empty string) TextString : ""(empty string) IsConstant : falsevdCircle AlignToViewSize : 0 Thickness : 0.0vdEllipse MajorAngle : 0.0vdPolyline SPlineFlag : VdConstSplineFlag.SFlagSTANDARD = 0 Flag : VdConstPlineFlag.PlFlagOPEN = 0vdInsert AlignToViewSize : 0 Xscale : 1.0 Yscale : 1.0 Zscale : 1.0 Rotation : 0.0 Rows : 1 Columns : 1 ColumnDist : 0.0 RowDist : 0vdPoint AlignToViewSize : 0vdPolyHatch Thickness : 0.0vdText Flag : VdConstTextstyleFlag.LEFTTORIGHT = 0 Rotation : 0.0 WidthFactor : 1.0 BackgroundMaskBorder : false BackGroundMaskBorderPenWidth : VdConstLineWeight.LW_0 = 0 BackGroundMaskBorderColor : Empty (means no border color) BackGroundMask : false BackGroundMaskOffset : 0.0 BackGroundMaskColor : Empty (means no mask color) TextLine : grTextStyleExtra.TextLineFlags.None = 0 ObliqueAngle : 0.0 AlignToViewSize : 0 VerJustify : VdConstVerJust.VdTextVerBaseLine = 24 HorJustify : VdConstHorJust.VdTextHorLeft = 0vdPrimary Label : ""(empty string)vdBlock ExternalReferencePath : ""(empty string)vdFigure Layer : 0 visibility : VisibilityEnum.Visible) PenColor : ByLayer) LineType : ByLayer PenWidth : 0.0 URL : " " (empty string) ToolTip : " "( empty string) LineTypeScale : 1.0 LineWeight : VdConstLineWeight.LW_BYLAYER (==-1)) TransparencyMethod : TransparencyMethodEnum.Default (==2))vdLayer Frozen : false On : true Lock : falsevdLayout ShowHidenEdges : falsevdLineType DrawMethod : LineType.LineTypeDrawMethod.Center = 1 IsDPIScale : false==============================================================================================Default object types are defined for all vdPrimary objects by the property name '_t' and it takes the following values.vdConst.vdLine_code = 1;vdConst.vdPolyline_code = 2;vdConst.vdText_code = 3;vdConst.vdRect_code = 4;vdConst.vdCircle_code = 5;vdConst.vdEllipse_code = 6;vdConst.vdArc_code = 7;vdConst.vdImage_code = 8;vdConst.vdInsert_code = 9;vdConst.vd3DFace_code = 10;vdConst.vdPolyface_code = 11;vdConst.vdAttrib_code = 12;vdConst.vdAttribDef_code = 13;vdConst.vdInfinityLine_code = 14;vdConst.vdPoint_code = 15;vdConst.vdViewport_code = 16;vdConst.vdPolyhatch_code = 17;vdConst.vdLayout_code = 18;vdConst.vdBlock_code = 19;vdConst.vdLayer_code = 20;vdConst.vdTextstyle_code = 21;vdConst.vdHatchPattern_code = 22;vdConst.vdLineType_code = 23;Following are not supported but they are displayed as exploded blocks that contains previous known objectsvdConst.vdDimension_code = 24;vdConst.vdMText_code = 25;vdConst.vdImageDef_code = 26;vdConst.vdMultiline_code = 27;vdConst.vdGroundSurface_code = 28;vdConst.vdLeader_code = 29;vdConst.vdArcAlignedText = 30;===============================================================================================Example how to get an object layer which is undefined.var activelayout = vdcanvas.GetActiveLayout();for(i = ).. var fig = vdcanvas.GetEntityItem(activelayout.Entities.Item[i]); var layerref = vdcanvas.GetEntityItem(fig.Layer); if (!layerref ) layerref = vdcanvas.FindLayer("0"); var linetyperef = vdcanvas.GetEntityItem(fig.LineType); if (!linetyperef ) linetyperef = vdcanvas.FindLineType("ByLayer");....
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