| 277 | | * http://wiki.openstreetmap.org/wiki/Contours |
| | 277 | * http://wiki.openstreetmap.org/wiki/Contours#The_PostGIS_approach |
| | 278 | |
| | 279 | {{{ |
| | 280 | apt-get install gdal-bin |
| | 281 | mkdir ~/mapnik/srtm |
| | 282 | wget http://mapnik-utils.googlecode.com/svn@170/sandbox/testing/hillshading/srtm_generate_hdr.sh |
| | 283 | }}} |
| | 284 | |
| | 285 | Example for Haiti: |
| | 286 | {{{ |
| | 287 | wget |
| | 288 | }}} |
| | 289 | |
| | 290 | Run this script: |
| | 291 | {{{ |
| | 292 | #!/bin/bash |
| | 293 | PREP_TABLE="1" |
| | 294 | for X in *.hgt.zip; do |
| | 295 | yes | srtm_generate_hdr.sh $X |
| | 296 | rm -f "${X%%.zip}" |
| | 297 | |
| | 298 | # Import 10m contours |
| | 299 | rm -f "${X%%.hgt.zip}.shp" "${X%%.hgt.zip}.shx" "${X%%.hgt.zip}.dbf" |
| | 300 | gdal_contour -i 10 -snodata 32767 -a height "${X%%.hgt.zip}.tif" "${X%%.hgt.zip}.shp" |
| | 301 | [ "$PREP_TABLE" ] && shp2pgsql -p -I -g way "${X%%.hgt.zip}" contours | psql -q gis |
| | 302 | shp2pgsql -a -g way "${X%%.hgt.zip}" contours | psql -q gis |
| | 303 | |
| | 304 | rm -f "${X%%.hgt.zip}.shp" "${X%%.hgt.zip}.shx" "${X%%.hgt.zip}.dbf" |
| | 305 | rm -f "${X%%.hgt.zip}.bil" |
| | 306 | rm -f "${X%%.hgt.zip}.hdr" |
| | 307 | rm -f "${X%%.hgt.zip}.prj" |
| | 308 | rm -f "${X%%.hgt.zip}.tif" |
| | 309 | unset PREP_TABLE |
| | 310 | done |
| | 311 | }}} |
| | 312 | |
| | 313 | Configure Mapnik: |
| | 314 | {{{ |
| | 315 | vim ~/mapnik/osm.xml |
| | 316 | <Style name="contours10"> |
| | 317 | <Rule> |
| | 318 | <MaxScaleDenominator>51185</MaxScaleDenominator> |
| | 319 | <MinScaleDenominator>1599</MinScaleDenominator> |
| | 320 | <LineSymbolizer> |
| | 321 | <CssParameter name="stroke">#9cb197</CssParameter> |
| | 322 | <CssParameter name="stroke-width">0.5</CssParameter> |
| | 323 | </LineSymbolizer> |
| | 324 | </Rule> |
| | 325 | </Style> |
| | 326 | <Style name="contours50"> |
| | 327 | <Rule> |
| | 328 | <MaxScaleDenominator>204741</MaxScaleDenominator> |
| | 329 | <MinScaleDenominator>51185</MinScaleDenominator> |
| | 330 | <LineSymbolizer> |
| | 331 | <CssParameter name="stroke">#9cb197</CssParameter> |
| | 332 | <CssParameter name="stroke-width">0.6</CssParameter> |
| | 333 | </LineSymbolizer> |
| | 334 | </Rule> |
| | 335 | <Rule> |
| | 336 | <MaxScaleDenominator>51185</MaxScaleDenominator> |
| | 337 | <MinScaleDenominator>1599</MinScaleDenominator> |
| | 338 | <LineSymbolizer> |
| | 339 | <CssParameter name="stroke">#747b90</CssParameter> |
| | 340 | <CssParameter name="stroke-width">0.6</CssParameter> |
| | 341 | </LineSymbolizer> |
| | 342 | </Rule> |
| | 343 | </Style> |
| | 344 | <Style name="contours100"> |
| | 345 | <Rule> |
| | 346 | <MaxScaleDenominator>409483</MaxScaleDenominator> |
| | 347 | <MinScaleDenominator>204741</MinScaleDenominator> |
| | 348 | <LineSymbolizer> |
| | 349 | <CssParameter name="stroke">#9cb197</CssParameter> |
| | 350 | <CssParameter name="stroke-width">0.7</CssParameter> |
| | 351 | </LineSymbolizer> |
| | 352 | </Rule> |
| | 353 | <Rule> |
| | 354 | <MaxScaleDenominator>204741</MaxScaleDenominator> |
| | 355 | <MinScaleDenominator>51185</MinScaleDenominator> |
| | 356 | <LineSymbolizer> |
| | 357 | <CssParameter name="stroke">#747b90</CssParameter> |
| | 358 | <CssParameter name="stroke-width">0.7</CssParameter> |
| | 359 | </LineSymbolizer> |
| | 360 | </Rule> |
| | 361 | <Rule> |
| | 362 | <MaxScaleDenominator>51185</MaxScaleDenominator> |
| | 363 | <MinScaleDenominator>1599</MinScaleDenominator> |
| | 364 | <LineSymbolizer> |
| | 365 | <CssParameter name="stroke">#855d62</CssParameter> |
| | 366 | <CssParameter name="stroke-width">0.7</CssParameter> |
| | 367 | </LineSymbolizer> |
| | 368 | </Rule> |
| | 369 | </Style> |
| | 370 | <Style name="contours-text50"> |
| | 371 | <Rule> |
| | 372 | <MaxScaleDenominator>51185</MaxScaleDenominator> |
| | 373 | <MinScaleDenominator>1599</MinScaleDenominator> |
| | 374 | <TextSymbolizer name="height" face_name="DejaVu Sans Book" size="8" fill="#747b90" halo_radius="1" placement="line" /> |
| | 375 | </Rule> |
| | 376 | </Style> |
| | 377 | <Style name="contours-text100"> |
| | 378 | <Rule> |
| | 379 | <MaxScaleDenominator>102370</MaxScaleDenominator> |
| | 380 | <MinScaleDenominator>51185</MinScaleDenominator> |
| | 381 | <TextSymbolizer name="height" face_name="DejaVu Sans Book" size="8" fill="#747b90" halo_radius="1" placement="line" /> |
| | 382 | </Rule> |
| | 383 | <Rule> |
| | 384 | <MaxScaleDenominator>51185</MaxScaleDenominator> |
| | 385 | <MinScaleDenominator>1599</MinScaleDenominator> |
| | 386 | <TextSymbolizer name="height" face_name="DejaVu Sans Book" size="8" fill="#855d62" halo_radius="1" placement="line" /> |
| | 387 | </Rule> |
| | 388 | </Style> |
| | 389 | <Layer name="srtm_10" status="on" srs="+proj=latlong +datum=WGS84"> |
| | 390 | <StyleName>contours10</StyleName> |
| | 391 | <StyleName>contours-text10</StyleName> |
| | 392 | <Datasource> |
| | 393 | <Parameter name="type">postgis</Parameter> |
| | 394 | <Parameter name="host"></Parameter> |
| | 395 | <Parameter name="port"></Parameter> |
| | 396 | <Parameter name="user"></Parameter> |
| | 397 | <Parameter name="password"></Parameter> |
| | 398 | <Parameter name="dbname">gis</Parameter> |
| | 399 | <Parameter name="estimate_extent">false</Parameter> |
| | 400 | <Parameter name="table">(select way,height from contours WHERE height::integer % 10 = 0 AND height::integer % 50 != 0 AND height::integer % 100 != 0) as "contours-10"</Parameter> |
| | 401 | <Parameter name="extent">-180,-89.99,180,89.99</Parameter> |
| | 402 | </Datasource> |
| | 403 | </Layer> |
| | 404 | <Layer name="srtm_50" status="on" srs="+proj=latlong +datum=WGS84"> |
| | 405 | <StyleName>contours50</StyleName> |
| | 406 | <StyleName>contours-text50</StyleName> |
| | 407 | <Datasource> |
| | 408 | <Parameter name="type">postgis</Parameter> |
| | 409 | <Parameter name="host"></Parameter> |
| | 410 | <Parameter name="port"></Parameter> |
| | 411 | <Parameter name="user"></Parameter> |
| | 412 | <Parameter name="password"></Parameter> |
| | 413 | <Parameter name="dbname">gis</Parameter> |
| | 414 | <Parameter name="estimate_extent">false</Parameter> |
| | 415 | <Parameter name="table">(select way,height from contours WHERE height::integer % 50 = 0 AND height::integer % 100 != 0) as "contours-50"</Parameter> |
| | 416 | <Parameter name="extent">-180,-89.99,180,89.99</Parameter> |
| | 417 | </Datasource> |
| | 418 | </Layer> |
| | 419 | <Layer name="srtm_100" status="on" srs="+proj=latlong +datum=WGS84"> |
| | 420 | <StyleName>contours100</StyleName> |
| | 421 | <StyleName>contours-text100</StyleName> |
| | 422 | <Datasource> |
| | 423 | <Parameter name="type">postgis</Parameter> |
| | 424 | <Parameter name="host"></Parameter> |
| | 425 | <Parameter name="port"></Parameter> |
| | 426 | <Parameter name="user"></Parameter> |
| | 427 | <Parameter name="password"></Parameter> |
| | 428 | <Parameter name="dbname">gis</Parameter> |
| | 429 | <Parameter name="estimate_extent">false</Parameter> |
| | 430 | <Parameter name="table">(select way,height from contours WHERE height::integer % 100 = 0) as "contours-100"</Parameter> |
| | 431 | <Parameter name="extent">-180,-89.99,180,89.99</Parameter> |
| | 432 | </Datasource> |
| | 433 | </Layer> |
| | 434 | }}} |