custom line type

how to creat line type, using dashes and greater than/less than symbols to show direction, you would think i would know this after all these years, but alas, have never made a line type and too lazy to look at help menu or book.

 

*flowdir, flow line ---->-------->-------->----
A,2,-.5,[">",standard,S=1,R=0.0,X=-.5,Y=-.5],-.5,2

 

if you desire to have the linetype actually end with a flowdirection symbol,
try using a leader instead of a line and then change the linetpye to use the
below definition. change the arrow type on the leader to "right angle" or
"open 30" whichever is closer to "<".

you have to draw the leader in reverse direction of flow, of course.

you may have to reverse the symbol in the definition from ">" to "<". i
didn't test this with the below definition.

i've used expresstools "make linetype" command to use a symbol that matches
my leader arrowhead exactly. concurrently changing the leader's dimscale
and ltscale allow me to size the arrowheads as necessary.

 

Good point doug.

As I recall there's a REVDIR.lsp function somewhere that will reverse the direction af a polyline, which would reverse the "arrow" direction.

 

There is a swapline.lsp on the FreeStuff page at dotsoft.com that will
do this for lines, but it doesn't work for polylines. The January
2000 code from Cadalyst has a REV.lsp (Tip1588).

 

There's a reverse polyline routine at CADTOWN:

http://www.cadtown.com