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Add maximumheight and minimumheight options to IsoHDPerspective

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This commit is contained in:
Mike Primm 2011-08-04 00:26:08 -05:00
parent 571c66a189
commit d95189a7c1
1 changed files with 9 additions and 3 deletions
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10
src/main/java/org/dynmap/hdmap/IsoHDPerspective.java
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@ -41,7 +41,8 @@ public class IsoHDPerspective implements HDPerspective {
public double azimuth; /* Angle in degrees from looking north (0), east (90), south (180), or west (270) */
public double inclination; /* Angle in degrees from horizontal (0) to vertical (90) */
public double scale; /* Scale - tile pixel widths per block */
public double maxheight;
public double minheight;
/* Coordinate space for tiles consists of a plane (X, Y), corresponding to the projection of each tile on to the
* plane of the bottom of the world (X positive to the right, Y positive to the top), with Z+ corresponding to the
* height above this plane on a vector towards the viewer). Logically, this makes the parallelogram representing the
@ -655,6 +656,11 @@ public class IsoHDPerspective implements HDPerspective {
scale = configuration.getDouble("scale", MIN_SCALE);
if(scale < MIN_SCALE) scale = MIN_SCALE;
if(scale > MAX_SCALE) scale = MAX_SCALE;
/* Get max and min height */
maxheight = configuration.getInteger("maximumheight", 127);
if(maxheight > 127) maxheight = 127;
minheight = configuration.getInteger("minimumheight", 0);
if(minheight < 0) minheight = 0;
/* Generate transform matrix for world-to-tile coordinate mapping */
/* First, need to fix basic coordinate mismatches before rotation - we want zero azimuth to have north to top
@ -918,7 +924,7 @@ public class IsoHDPerspective implements HDPerspective {
for(int y = 0; y < tileHeight; y++) {
ps.top.x = ps.bottom.x = xbase + x + 0.5; /* Start at center of pixel at Y=127.5, bottom at Y=-0.5 */
ps.top.y = ps.bottom.y = ybase + y + 0.5;
ps.top.z = 127.5; ps.bottom.z = -0.5;
ps.top.z = maxheight + 0.5; ps.bottom.z = minheight - 0.5;
map_to_world.transform(ps.top); /* Transform to world coordinates */
map_to_world.transform(ps.bottom);
ps.py = y;