Hello,
On my Application I currently am using two layers to draw my roads. The first
one is a line layer that draws the road itself. The second is a annotation
layer that draws the labels and the road shields. Both layers have the same
source dataset. My concern is that my application is taking a performance hit
since the road file is being read twice.
If there is a performance hit by reading the same data file twice, is there a
way combine the line layer and annotation layer into a single layer that has
both the road symbology, and labels that have shields?
Layer Roads
...
DATA MyRoads
TYPE LINE
CLASS
NAME 'State Highway'
EXPRESSION "A20"
STYLE
COLOR 0 0 0
SYMBOL 'plainline'
SIZE 5
END #style
STYLE
SYMBOL 'plainline'
SIZE 1
COLOR 255 0 0
END #style
END #class
...
END #LAYER
Layer RoadLabels
...
Data MyRoads
TYPE ANNOTATION
CLASS
TEXT ([ROADNUM])
EXPRESSION 'A20'
SYMBOL './symbols/STHWY.png'
LABEL
type truetype # AGG required
size 7 #for AGG
ANTIALIAS TRUE
FONT vera_sans #for AGG
MINFEATURESIZE 25
MINDISTANCE 200
COLOR 254 254 254
END #LABEL
END #CLASS
END #Layers
Thank You
Mark Volz
GIS Specialist
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