private void axMap_OnViewRefreshed(object sender, IMapControlEvents2_OnViewRefreshedEvent e)
{
try
{
if (mFeatures != null)
{
for (int i = 0; i < mStoryTips.Count && i < mFeatures.Count; i++)
{
MyTip storyTip = mStoryTips[i];
storyTip.Location = MapManager.getCurrentCoord(mFeatures[i], axMap, this, mStoryTips[i]);
if (isCanTipShow(storyTip))
{
storyTip.Show();
}
else
{
storyTip.Hide();
}
}
}
}
catch
{
}
}
private void btnBufferAnalysis_Click(object sender, EventArgs e)
{
if (!isBuffering)
{
isBuffering = true;
btnBufferAnalysis.Text = "停止寻找";
}
else
{
isBuffering = false;
for (int i = 0; i < mStoryTips.Count; i++)
{
MyTip tip = mStoryTips[i];
tip.Close();
}
mStoryTips.Clear();
MapManager.deleteAllFeature("invisibleLayer", axMap);
(axMap.Map as IGraphicsContainer).DeleteAllElements();
axMap.ActiveView.Refresh();
btnBufferAnalysis.Text = "附近人消息";
}
}
private void axMapControl1_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e)
{
if (axMap.MousePointer == esriControlsMousePointer.esriPointerPan)
{
axMap.Pan();
}
if (e.button == 4)
{
// axMap.MousePointer = esriControlsMousePointer.esriPointerPan;
axMap.Pan();
}
if (isBuffering && e.button == 1)
{
//选择要素
selectFeatrue(e.x, e.y);
if (mFeatures != null)
{
mFeatures.Clear();
}
////获取缓冲区的要素
mFeatures = MapManager.createBuffer(axMap, bufferSize, "story", false);
//删除以前生成的缓冲区要素
for (int i = 0; i < mStoryTips.Count; i++)
{
MyTip tip = mStoryTips[i];
tip.Close();
}
mStoryTips.Clear();
List <String> ids = new List <string>();
for (int i = 0; i < mFeatures.Count; i++)
{
IFeature feature = mFeatures[i];
if (feature != null)
{
String id = (string)MapManager.getFieldByName(feature, "story_id");
MyTip storyTip = new MyTip(id);
storyTip.TopMost = true;
storyTip.Location = MapManager.getCurrentCoord(feature, axMap, this, storyTip);
if (isCanTipShow(storyTip))
{
storyTip.Show();
}
mStoryTips.Add(storyTip);
}
}
}
}
/// <summary>
/// 判断提示是否可显示
/// </summary>
/// <param name="tip"></param>
/// <returns></returns>
private bool isCanTipShow(MyTip tip)
{
if (tip.Location.X < Location.X + axMap.Location.X - tip.Width)
{
return(false);
}
else if (tip.Location.X > Location.X + axMap.Location.X + axMap.Width)
{
return(false);
}
else if (tip.Location.Y < Location.Y + axMap.Location.Y - tip.Height)
{
return(false);
}
else if (tip.Location.Y > Location.Y + axMap.Location.Y + axMap.Height)
{
return(false);
}
return(true);
}