1如何修改柱状专题图的样式？
Map1.DataSets.Item(DsName).Themes("trafficflubar").Properties.Size = BarSize
Map1.DataSets.Item(DsName).Themes("trafficflubar").Properties.BarWidth = BarWidth

Map1.DataSets.Item(DsName).Themes("trafficflubar").ThemeProperties.MultivarCategories.Item(1).style.RegionColor = SmallTruck_Color
Map1.DataSets.Item(DsName).Themes("trafficflubar").ThemeProperties.MultivarCategories.Item(2).style.RegionColor = MiddleTruck_Color
Map1.DataSets.Item(DsName).Themes("trafficflubar").ThemeProperties.MultivarCategories.Item(3).style.RegionColor = BigTruck_Color

2如何修改饼状专题图的样式？
Map1.DataSets.Item(DsName).Themes("trafficflupiebar").Properties.Size = PieBarSize
'Map1.DataSets.Item(DsName).Themes("trafficflupiebar").Properties.Width = PieBarWidth

Map1.DataSets.Item(DsName).Themes("trafficflupiebar").ThemeProperties.MultivarCategories.Item(1).style.RegionColor = SmallTruck_Color
Map1.DataSets.Item(DsName).Themes("trafficflupiebar").ThemeProperties.MultivarCategories.Item(2).style.RegionColor = MiddleTruck_Color
Map1.DataSets.Item(DsName).Themes("trafficflupiebar").ThemeProperties.MultivarCategories.Item(3).style.RegionColor = BigTruck_Color
Map1.DataSets.Item(DsName).Themes("trafficflupiebar").ThemeProperties.MultivarCategories.Item(4).style.RegionColor = SmallCar_Color

3如何修改标注的样式？
Set oStyle = New MapXLib.style
oStyle.TextFont.Size = 12
oStyle.TextFont.Bold = True
oStyle.SymbolFontColor = vbWhite
oStyle.TextFontBackColor = vbBlue
oStyle.TextFontOpaque = True

Map1.Annotations.AddText(rs(showfield), lyr.Selection(1).CenterX, lyr.Selection(1).CenterY, 3).Graphic.style = oStyle
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