void cmd_recurse(mapcache_context *cmd_ctx, mapcache_tile *tile) {
cmd action;
int curx, cury, curz;
int minchildx,maxchildx,minchildy,maxchildy;
double bboxbl[4],bboxtr[4];
double epsilon;
apr_pool_clear(cmd_ctx->pool);
if(sig_int_received || error_detected) { //stop if we were asked to stop by hitting ctrl-c
//remove all items from the queue
struct seed_cmd entry;
while (trypop_queue(&entry)!=APR_EAGAIN) {queuedtilestot--;}
return;
}
action = examine_tile(cmd_ctx, tile);
if(action == MAPCACHE_CMD_SEED || action == MAPCACHE_CMD_DELETE || action == MAPCACHE_CMD_TRANSFER){
//current x,y,z needs seeding, add it to the queue
struct seed_cmd cmd;
cmd.x = tile->x;
cmd.y = tile->y;
cmd.z = tile->z;
cmd.command = action;
push_queue(cmd);
queuedtilestot++;
progresslog(tile->x,tile->y,tile->z);
}
//recurse into our 4 child metatiles
curx = tile->x;
cury = tile->y;
curz = tile->z;
tile->z += 1;
if(tile->z > maxzoom) {
tile->z -= 1;
return;
}
/*
* compute the x,y limits of the next zoom level that intersect the
* current metatile
*/
mapcache_grid_get_extent(cmd_ctx, grid_link->grid,
curx, cury, curz, bboxbl);
mapcache_grid_get_extent(cmd_ctx, grid_link->grid,
curx+tileset->metasize_x-1, cury+tileset->metasize_y-1, curz, bboxtr);
epsilon = (bboxbl[2]-bboxbl[0])*0.01;
mapcache_grid_get_xy(cmd_ctx,grid_link->grid,
bboxbl[0] + epsilon,
bboxbl[1] + epsilon,
tile->z,&minchildx,&minchildy);
mapcache_grid_get_xy(cmd_ctx,grid_link->grid,
bboxtr[2] - epsilon,
bboxtr[3] - epsilon,
tile->z,&maxchildx,&maxchildy);
minchildx = (minchildx / tileset->metasize_x)*tileset->metasize_x;
minchildy = (minchildy / tileset->metasize_y)*tileset->metasize_y;
maxchildx = (maxchildx / tileset->metasize_x + 1)*tileset->metasize_x;
maxchildy = (maxchildy / tileset->metasize_y + 1)*tileset->metasize_y;
for(tile->x = minchildx; tile->x < maxchildx; tile->x += tileset->metasize_x) {
if(tile->x >= grid_link->grid_limits[tile->z][0] && tile->x < grid_link->grid_limits[tile->z][2]) {
for(tile->y = minchildy; tile->y < maxchildy; tile->y += tileset->metasize_y) {
if(tile->y >= grid_link->grid_limits[tile->z][1] && tile->y < grid_link->grid_limits[tile->z][3]) {
cmd_recurse(cmd_ctx,tile);
}
}
}
}
tile->x = curx;
tile->y = cury;
tile->z = curz;
}
void _create_capabilities_kml(mapcache_context *ctx, mapcache_request_get_capabilities *req, char *url, char *path_info, mapcache_cfg *cfg)
{
mapcache_request_get_capabilities_kml *request = (mapcache_request_get_capabilities_kml*)req;
char *caps;
const char *onlineresource = apr_table_get(cfg->metadata,"url");
int i, j;
if(!onlineresource) {
onlineresource = url;
}
request->request.mime_type = apr_pstrdup(ctx->pool,"application/vnd.google-earth.kml+xml");
assert(request->tile || (request->grid && request->tileset));
/* if we have no specific tile, create a kml document referencing all the tiles of the first level in the grid*/
if(!request->tile) {
mapcache_extent extent = request->grid->restricted_extent?*(request->grid->restricted_extent):request->grid->grid->extent;
caps = apr_psprintf(ctx->pool, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<kml xmlns=\"http://earth.google.com/kml/2.1\">\n"
" <Document>\n"
" <Region>\n"
" <Lod>\n"
" <minLodPixels>128</minLodPixels><maxLodPixels>512</maxLodPixels>\n"
" </Lod>\n"
" <LatLonAltBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonAltBox>\n"
" </Region>\n",
extent.maxy,extent.miny,extent.maxx,extent.minx);
for(i=request->grid->grid_limits[0].minx; i<request->grid->grid_limits[0].maxx; i++) {
for(j=request->grid->grid_limits[0].miny; j<request->grid->grid_limits[0].maxy; j++) {
mapcache_tile *t = mapcache_tileset_tile_create(ctx->pool, request->tileset, request->grid);
mapcache_extent bb;
t->x = i;
t->y = j;
t->z = 0;
mapcache_grid_get_extent(ctx, t->grid_link->grid,
t->x, t->y, t->z, &bb);
caps = apr_psprintf(ctx->pool, "%s"
" <NetworkLink>\n"
" <name>%d%d%d</name>\n"
" <Region>\n"
" <Lod>\n"
" <minLodPixels>128</minLodPixels><maxLodPixels>-1</maxLodPixels>\n"
" </Lod>\n"
" <LatLonAltBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonAltBox>\n"
" </Region>\n"
" <Link>\n"
" <href>%s/kml/%s@%s/%d/%d/%d.kml</href>\n"
" <viewRefreshMode>onRegion</viewRefreshMode>\n"
" </Link>\n"
" </NetworkLink>\n",
caps, t->x, t->y, t->z,
bb.maxy, bb.miny, bb.maxx, bb.minx,
onlineresource, request->tileset->name, request->grid->grid->name,
t->z, t->x, t->y);
}
}
caps = apr_pstrcat(ctx->pool, caps, " </Document>\n</kml>\n", NULL);
} else {
mapcache_extent bbox;
mapcache_grid_get_extent(ctx, request->tile->grid_link->grid,
request->tile->x, request->tile->y, request->tile->z, &bbox);
caps = apr_psprintf(ctx->pool, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<kml xmlns=\"http://earth.google.com/kml/2.1\">\n"
" <Document>\n"
" <Region>\n"
" <Lod>\n"
" <minLodPixels>128</minLodPixels><maxLodPixels>%d</maxLodPixels>\n"
" </Lod>\n"
" <LatLonAltBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonAltBox>\n"
" </Region>\n"
" <GroundOverlay>\n"
" <drawOrder>0</drawOrder>\n"
" <Icon>\n"
" <href>%s/tms/1.0.0/%s@%s/%d/%d/%d.%s</href>\n"
" </Icon>\n"
" <LatLonBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonBox>\n"
" </GroundOverlay>\n",
(request->tile->z == request->tile->grid_link->grid->nlevels - 1) ? -1 : 512,
bbox.maxy, bbox.miny, bbox.maxx, bbox.miny,
onlineresource, request->tile->tileset->name, request->tile->grid_link->grid->name,
request->tile->z, request->tile->x, request->tile->y,
(request->tile->tileset->format) ? request->tile->tileset->format->extension : "png",
bbox.maxy, bbox.miny, bbox.maxx, bbox.minx);
if (request->tile->z < request->tile->grid_link->grid->nlevels - 1) {
for (i = 0; i <= 1; i++) {
for (j = 0; j <= 1; j++) {
/* compute the addresses of the child tiles */
mapcache_tile *t = mapcache_tileset_tile_create(ctx->pool, request->tile->tileset, request->tile->grid_link);
mapcache_extent bb;
t->x = (request->tile->x << 1) + i;
t->y = (request->tile->y << 1) + j;
t->z = request->tile->z + 1;
mapcache_grid_get_extent(ctx, t->grid_link->grid,
t->x, t->y, t->z, &bb);
caps = apr_psprintf(ctx->pool, "%s"
" <NetworkLink>\n"
" <name>%d%d%d</name>\n"
" <Region>\n"
" <Lod>\n"
" <minLodPixels>128</minLodPixels><maxLodPixels>-1</maxLodPixels>\n"
" </Lod>\n"
" <LatLonAltBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonAltBox>\n"
" </Region>\n"
" <Link>\n"
" <href>%s/kml/%s@%s/%d/%d/%d.kml</href>\n"
" <viewRefreshMode>onRegion</viewRefreshMode>\n"
" </Link>\n"
" </NetworkLink>\n",
caps, t->x, t->y, t->z,
bb.maxy, bb.miny, bb.maxx, bb.minx,
onlineresource, request->tile->tileset->name, request->tile->grid_link->grid->name,
t->z, t->x, t->y);
}
}
}
caps = apr_pstrcat(ctx->pool, caps, " </Document>\n</kml>\n", NULL);
}
request->request.capabilities = caps;
}
void _create_capabilities_kml(mapcache_context *ctx, mapcache_request_get_capabilities *req, char *url, char *path_info, mapcache_cfg *cfg) {
mapcache_request_get_capabilities_kml *request = (mapcache_request_get_capabilities_kml*)req;
char *caps;
const char *onlineresource = apr_table_get(cfg->metadata,"url");
double bbox[4];
if(!onlineresource) {
onlineresource = url;
}
request->request.mime_type = apr_pstrdup(ctx->pool,"application/vnd.google-earth.kml+xml");
mapcache_grid_get_extent(ctx,request->tile->grid_link->grid,
request->tile->x, request->tile->y, request->tile->z, bbox);
caps = apr_psprintf(ctx->pool,"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<kml xmlns=\"http://earth.google.com/kml/2.1\">\n"
" <Document>\n"
" <Region>\n"
" <Lod>\n"
" <minLodPixels>128</minLodPixels><maxLodPixels>%d</maxLodPixels>\n"
" </Lod>\n"
" <LatLonAltBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonAltBox>\n"
" </Region>\n"
" <GroundOverlay>\n"
" <drawOrder>0</drawOrder>\n"
" <Icon>\n"
" <href>%s/tms/1.0.0/%s@%s/%d/%d/%d.%s</href>\n"
" </Icon>\n"
" <LatLonBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonBox>\n"
" </GroundOverlay>\n",
(request->tile->z == request->tile->grid_link->grid->nlevels-1)?-1:512,
bbox[3],bbox[1],bbox[2],bbox[0],
onlineresource,request->tile->tileset->name,request->tile->grid_link->grid->name,
request->tile->z, request->tile->x,request->tile->y,
(request->tile->tileset->format)?request->tile->tileset->format->extension:"png",
bbox[3],bbox[1],bbox[2],bbox[0]);
if(request->tile->z < request->tile->grid_link->grid->nlevels-1) {
int i,j;
for(i=0;i<=1;i++) {
for(j=0;j<=1;j++) {
mapcache_tile *t = mapcache_tileset_tile_create(ctx->pool,request->tile->tileset, request->tile->grid_link);
double bb[4];
t->x = (request->tile->x << 1) +i;
t->y = (request->tile->y << 1) +j;
t->z = request->tile->z + 1;
mapcache_grid_get_extent(ctx,t->grid_link->grid,
t->x, t->y, t->z, bb);
caps = apr_psprintf(ctx->pool,"%s"
" <NetworkLink>\n"
" <name>%d%d%d</name>\n"
" <Region>\n"
" <Lod>\n"
" <minLodPixels>128</minLodPixels><maxLodPixels>-1</maxLodPixels>\n"
" </Lod>\n"
" <LatLonAltBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonAltBox>\n"
" </Region>\n"
" <Link>\n"
" <href>%s/kml/%s@%s/%d/%d/%d.kml</href>\n"
" <viewRefreshMode>onRegion</viewRefreshMode>\n"
" </Link>\n"
" </NetworkLink>\n",
caps,t->x,t->y,t->z,
bb[3],bb[1],bb[2],bb[0],
onlineresource,request->tile->tileset->name,request->tile->grid_link->grid->name,
t->z, t->x,t->y);
}
}
}
caps = apr_pstrcat(ctx->pool,caps," </Document>\n</kml>\n",NULL);
request->request.capabilities = caps;
}