GRIDS and Graticule
Brent Fraser
bfraser at GEOANALYTIC.COM
Tue Jun 28 06:51:42 PDT 2005
François,
Here's the documentation explanation, along with some of my notes on the
parameters:
MINARCS [double]
The minimum number of arcs to draw.
The minimum number of graticule lines to draw on the map. Use this
parameter to get more lines.
MAXARCS [double]
The maximum number of arcs to draw.
The maximum number of graticule lines to draw on the map. Use this
parameter to get fewer lines.
MININTERVAL [double]
The minimum number of intervals to try to use. The distance between the
lines, in map units.
MAXINTERVAL [double]
The maximum number of intervals to try to use. The distance between the
lines, in map units.
MINSUBDIVIDE [double]
The minimum number of segments to use when rendering an arc. If the lines
should be very curved, increase this number to smooth the lines.
MAXSUBDIVIDE [double]
The maximum number of segments to use when rendering an arc. If the
graticule should be very straight, use a small number to minimize the number
of points for faster rendering.
Brent Fraser
----- Original Message -----
From: "François TOURDE" <fr-ms at TOURDE.ORG>
To: <MAPSERVER-USERS at LISTS.UMN.EDU>
Sent: Monday, June 27, 2005 9:27 AM
Subject: [UMN_MAPSERVER-USERS] GRIDS and Graticule
> Hi,
>
> I don't undestand clearly what is the exact signification of these
> GRID parameters.
>
> # MINARCS 4
> MAXARCS 10
> MININTERVAL 1
> MAXINTERVAL 15
> # MINSUBDIVIDE 1
> MAXSUBDIVIDE 2
>
>
> Could somebody explain me what's an ARC, what's a Subdivide, and,
> cerise sur le gateau, how MAPSERVER (or me) choose the best interval
> for displaying Graticule?
>
> Many Thanks
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