1                 : /******************************************************************************
       2                 :  * $Id: minidriver_worldwind.cpp 18020 2009-11-14 14:33:20Z rouault $
       3                 :  *
       4                 :  * Project:  WMS Client Driver
       5                 :  * Purpose:  Implementation of Dataset and RasterBand classes for WMS
       6                 :  *           and other similar services.
       7                 :  * Author:   Adam Nowacki, nowak@xpam.de
       8                 :  *
       9                 :  ******************************************************************************
      10                 :  * Copyright (c) 2007, Adam Nowacki
      11                 :  *
      12                 :  * Permission is hereby granted, free of charge, to any person obtaining a
      13                 :  * copy of this software and associated documentation files (the "Software"),
      14                 :  * to deal in the Software without restriction, including without limitation
      15                 :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      16                 :  * and/or sell copies of the Software, and to permit persons to whom the
      17                 :  * Software is furnished to do so, subject to the following conditions:
      18                 :  *
      19                 :  * The above copyright notice and this permission notice shall be included
      20                 :  * in all copies or substantial portions of the Software.
      21                 :  *
      22                 :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      23                 :  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      24                 :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      25                 :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      26                 :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      27                 :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      28                 :  * DEALINGS IN THE SOFTWARE.
      29                 :  ****************************************************************************/
      30                 : 
      31                 : #include "stdinc.h"
      32                 : 
      33            1059 : CPP_GDALWMSMiniDriverFactory(WorldWind)
      34                 : 
      35               0 : GDALWMSMiniDriver_WorldWind::GDALWMSMiniDriver_WorldWind() {
      36               0 : }
      37                 : 
      38               0 : GDALWMSMiniDriver_WorldWind::~GDALWMSMiniDriver_WorldWind() {
      39               0 : }
      40                 : 
      41               0 : CPLErr GDALWMSMiniDriver_WorldWind::Initialize(CPLXMLNode *config) {
      42               0 :     CPLErr ret = CE_None;
      43                 : 
      44               0 :     if (ret == CE_None) {
      45               0 :         const char *base_url = CPLGetXMLValue(config, "ServerURL", "");
      46               0 :         if (base_url[0] != '\0') {
      47                 :             /* Try the old name */
      48               0 :             base_url = CPLGetXMLValue(config, "ServerUrl", "");
      49                 :         }
      50               0 :         if (base_url[0] != '\0') {
      51               0 :             m_base_url = base_url;
      52                 :         } else {
      53               0 :             CPLError(CE_Failure, CPLE_AppDefined, "GDALWMS, WorldWind mini-driver: ServerURL missing.");
      54               0 :             ret = CE_Failure;
      55                 :         }
      56                 :     }
      57                 : 
      58               0 :     m_dataset = CPLGetXMLValue(config, "Layer", "");
      59               0 :     m_projection_wkt = ProjToWKT("EPSG:4326");
      60                 : 
      61               0 :     return ret;
      62                 : }
      63                 : 
      64               0 : void GDALWMSMiniDriver_WorldWind::GetCapabilities(GDALWMSMiniDriverCapabilities *caps) {
      65               0 :     caps->m_capabilities_version = 1;
      66               0 :     caps->m_has_arb_overviews = 0;
      67               0 :     caps->m_has_image_request = 0;
      68               0 :     caps->m_has_tiled_image_requeset = 1;
      69               0 :     caps->m_max_overview_count = 32;
      70               0 : }
      71                 : 
      72               0 : void GDALWMSMiniDriver_WorldWind::ImageRequest(CPLString *url, const GDALWMSImageRequestInfo &iri) {
      73               0 : }
      74                 : 
      75               0 : void GDALWMSMiniDriver_WorldWind::TiledImageRequest(CPLString *url, const GDALWMSImageRequestInfo &iri, const GDALWMSTiledImageRequestInfo &tiri) {
      76               0 :     const GDALWMSDataWindow *data_window = m_parent_dataset->WMSGetDataWindow();
      77               0 :     int worldwind_y = static_cast<int>(floor(((data_window->m_y1 - data_window->m_y0) / (iri.m_y1 - iri.m_y0)) + 0.5)) - tiri.m_y - 1;
      78                 :     // http://worldwind25.arc.nasa.gov/tile/tile.aspx?T=geocover2000&L=0&X=86&Y=39
      79               0 :     *url = m_base_url;
      80               0 :     URLAppendF(url, "&T=%s", m_dataset.c_str());
      81               0 :     URLAppendF(url, "&L=%d", tiri.m_level);
      82               0 :     URLAppendF(url, "&X=%d", tiri.m_x);
      83               0 :     URLAppendF(url, "&Y=%d", worldwind_y);
      84               0 : }
      85                 : 
      86               0 : const char *GDALWMSMiniDriver_WorldWind::GetProjectionInWKT() {
      87               0 :     return m_projection_wkt.c_str();
      88                 : }