public void ScalePolyline(IPolyline Raai, double scale)
{
ITransform2D TransForm2D = Raai as ITransform2D;
// Get the center point of the envelope.
IEnvelope envelope = Raai.Envelope;
IPoint centerPoint = new PointClass();
centerPoint.X = ((envelope.XMax - envelope.XMin) / 2) + envelope.XMin;
centerPoint.Y = ((envelope.YMax - envelope.YMin) / 2) + envelope.YMin;
TransForm2D.Scale(centerPoint, scale, scale);
}
IGeometry IGeometricEffect.NextGeometry()
{
if (m_bDone)
{
return(null);
}
else
{
m_pCloneGeom = (IClone)m_pGeom;
m_pGeomCopy = (IGeometry)m_pCloneGeom.Clone();
m_pTransform = (ITransform2D)m_pGeomCopy;
m_pTransform.Scale(m_pCenterPoint, m_dFactorX, m_dFactorY);
m_bDone = true;
return(m_pGeomCopy);
}
}
IGeometry IGeometricEffect.NextGeometry()
{
if (m_bDone)
{
return null;
}
else
{
m_pCloneGeom = (IClone)m_pGeom;
m_pGeomCopy = (IGeometry)m_pCloneGeom.Clone();
m_pTransform = (ITransform2D)m_pGeomCopy;
m_pTransform.Scale(m_pCenterPoint, m_dFactorX, m_dFactorY);
m_bDone = true;
return m_pGeomCopy;
}
}
public bool SetElementProp()
{
try
{
//if (txtName.Text.Trim() == "")
//{
// MessageBox.Show("请输入变量名称", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);yjl0616
// return false;
//}
IElementProperties3 pElementProp = m_pOrgElement as IElementProperties3;
if (pElementProp != null)
{
pElementProp.Name = txtName.Text;
}
//对于ＦｒａｍｅＥｌｅｍｅｎｔ的情况
if (m_pOrgElement is IFrameElement)
{
IFrameProperties pFrameProperty = null;
IFrameDecoration pFrameDecoration = null;
DevComponents.Editors.ComboItem item = cmbBorder.SelectedItem as DevComponents.Editors.ComboItem;
if (cmbBorder.SelectedIndex != -1 && item != null)
{
IBorder pBorder = (IBorder)(item.Tag);
pFrameDecoration = (IFrameDecoration)pBorder;
pFrameDecoration.HorizontalSpacing = (double)numBorderGapX.Value;
pFrameDecoration.VerticalSpacing = (double)numBorderGapY.Value;
pFrameDecoration.CornerRounding = (short)numBorderRound.Value;
((IFrameElement)m_pOrgElement).Border = pBorder;
}
else
{
((IFrameElement)m_pOrgElement).Border = null;
}
item = cmbBack.SelectedItem as DevComponents.Editors.ComboItem;
if (cmbBack.SelectedIndex != -1 && item != null)
{
IBackground pBackground = (IBackground)(item.Tag);
pFrameDecoration = (IFrameDecoration)pBackground;
pFrameDecoration.HorizontalSpacing = (double)numBackGapX.Value;
pFrameDecoration.VerticalSpacing = (double)numBackGapY.Value;
pFrameDecoration.CornerRounding = (short)numBackRound.Value;
((IFrameElement)m_pOrgElement).Background = pBackground;
}
else
{
((IFrameElement)m_pOrgElement).Background = null;
}
item = cmbShadow.SelectedItem as DevComponents.Editors.ComboItem;
if (cmbShadow.SelectedIndex != -1 && item != null)
{
IShadow pShadow = (IShadow)(item.Tag);
pFrameDecoration = (IFrameDecoration)pShadow;
pFrameDecoration.HorizontalSpacing = (double)numShadowGapX.Value;
pFrameDecoration.VerticalSpacing = (double)numShadowGapY.Value;
pFrameDecoration.CornerRounding = (short)numShadowRound.Value;
pFrameProperty = (IFrameProperties)m_pOrgElement;
pFrameProperty.Shadow = pShadow;
}
else
{
pFrameProperty = (IFrameProperties)m_pOrgElement;
pFrameProperty.Shadow = null;
}
}
IEnvelope pBounds = new EnvelopeClass();
m_pOrgElement.QueryBounds(m_pDisplay, pBounds);
//设置偏移
double dx, dy;
IPoint pFromPoint = pBounds.LowerLeft;
if (chkUseOffDist.Checked)
{
dx = Convert.ToDouble(numLowerLeftX.Text);
dy = Convert.ToDouble(numLowerLeftY.Text);
}
else
{
dx = Convert.ToDouble(numLowerLeftX.Text) - pFromPoint.X;
dy = Convert.ToDouble(numLowerLeftY.Text) - pFromPoint.Y;
}
m_pTransform.Move(dx, dy);
//设置缩放
pFromPoint = pBounds.LowerLeft;
if (chkUsePercent.Checked)
{
dx = ((Convert.ToDouble(numWidth.Text) / 100) * pBounds.Width) / pBounds.Width;
dy = ((Convert.ToDouble(numHeight.Text) / 100) * pBounds.Width) / pBounds.Height;
}
else
{
dx = Convert.ToDouble(numWidth.Text) / pBounds.Width;
dy = Convert.ToDouble(numHeight.Text) / pBounds.Height;
}
m_pTransform.Scale(pFromPoint, dx, dy);
//设置符号
if (m_pOrgElement is IMarkerElement)
{
IMarkerElement pMrkElement = m_pOrgElement as IMarkerElement;
IMarkerSymbol pSymbol = (IMarkerSymbol)picPoint.Tag;
double dblSize = pMrkElement.Symbol.Size;
pMrkElement.Symbol = (IMarkerSymbol)picPoint.Tag;
pSymbol.Size = dblSize;
pMrkElement.Symbol = pSymbol;
}
else if (m_pOrgElement is ILineElement)
{
ILineElement pLinElement = m_pOrgElement as ILineElement;
pLinElement.Symbol = (ILineSymbol)picLine.Tag;
}
else if (m_pOrgElement is IFillShapeElement)
{
IFillShapeElement pFillElement = m_pOrgElement as IFillShapeElement;
pFillElement.Symbol = (IFillSymbol)picPoly.Tag;
}
else if (m_pOrgElement is ITextElement)
{
ITextElement pTxtElement = m_pOrgElement as ITextElement;
pTxtElement.Text = txtText.Text;
pTxtElement.Symbol = (ITextSymbol)picText.Tag;
}
if (m_pOrgElement is IFrameElement)
{
//判断指北针,比例尺,比例文本
IMapSurroundFrame pMapSurroundFrame = m_pOrgElement as IMapSurroundFrame;
if (pMapSurroundFrame != null)
{
IMapSurround pMapSurround = pMapSurroundFrame.MapSurround;
if (pMapSurround != null)
{
if (pMapSurround is INorthArrow)
{
pMapSurroundFrame.MapSurround = (IMapSurround)picArrow.Tag;
pMapSurroundFrame.MapSurround.Name = "指北针";
}
else if (pMapSurround is IScaleBar)
{
pMapSurroundFrame.MapSurround = (IMapSurround)picScale.Tag;
pMapSurroundFrame.MapSurround.Name = "比例尺";
}
else if (pMapSurround is IScaleText)
{
pMapSurroundFrame.MapSurround = (IMapSurround)picScaleText.Tag;
pMapSurroundFrame.MapSurround.Name = "比例尺";
}
}
}
}
m_pGraphicCtn.UpdateElement(m_pOrgElement);
m_pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
if (chkUseOffDist.Checked)
{
numLowerLeftX.Text = "0";
numLowerLeftY.Text = "0";
}
if (chkUsePercent.Checked)
{
numHeight.Text = "100";
numWidth.Text = "100";
}
return(true);
}
catch
{
//MessageBox.Show("保存属性时出现错误，错误描述为:" + ex.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return(false);
}
//
}
