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/******************************************************************************
* $Id: minidriver_tms.cpp 22021 2011-03-23 21:51:19Z rouault $
*
* Project: WMS Client Driver
* Purpose: Implementation of Dataset and RasterBand classes for WMS
* and other similar services.
* Author: Chris Schmidt
*
******************************************************************************
* Copyright (c) 2007, Chris Schmidt
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#include "stdinc.h"
CPP_GDALWMSMiniDriverFactory(TMS)
GDALWMSMiniDriver_TMS::GDALWMSMiniDriver_TMS() {
}
GDALWMSMiniDriver_TMS::~GDALWMSMiniDriver_TMS() {
}
CPLErr GDALWMSMiniDriver_TMS::Initialize(CPLXMLNode *config) {
CPLErr ret = CE_None;
if (ret == CE_None) {
const char *base_url = CPLGetXMLValue(config, "ServerURL", "");
if (base_url[0] != '\0') {
m_base_url = base_url;
if (m_base_url.find("${") == std::string::npos) {
if (m_base_url[m_base_url.size()-1] != '/') {
m_base_url += "/";
}
m_base_url += "${version}/${layer}/${z}/${x}/${y}.${format}";
}
} else {
CPLError(CE_Failure, CPLE_AppDefined, "GDALWMS, TMS mini-driver: ServerURL missing.");
ret = CE_Failure;
}
}
m_dataset = CPLGetXMLValue(config, "Layer", "");
m_version = CPLGetXMLValue(config, "Version", "1.0.0");
m_format = CPLGetXMLValue(config, "Format", "jpg");
return ret;
}
void GDALWMSMiniDriver_TMS::GetCapabilities(GDALWMSMiniDriverCapabilities *caps) {
caps->m_capabilities_version = 1;
caps->m_has_arb_overviews = 0;
caps->m_has_image_request = 0;
caps->m_has_tiled_image_requeset = 1;
caps->m_max_overview_count = 32;
}
void GDALWMSMiniDriver_TMS::ImageRequest(CPLString *url, const GDALWMSImageRequestInfo &iri) {
}
void GDALWMSMiniDriver_TMS::TiledImageRequest(CPLString *url, const GDALWMSImageRequestInfo &iri, const GDALWMSTiledImageRequestInfo &tiri) {
const GDALWMSDataWindow *data_window = m_parent_dataset->WMSGetDataWindow();
int tms_y;
if (data_window->m_y_origin != GDALWMSDataWindow::TOP) {
tms_y = static_cast<int>(floor(((data_window->m_y1 - data_window->m_y0)
/ (iri.m_y1 - iri.m_y0)) + 0.5)) - tiri.m_y - 1;
} else {
tms_y = tiri.m_y;
}
// http://tms25.arc.nasa.gov/tile/tile.aspx?T=geocover2000&L=0&X=86&Y=39
*url = m_base_url;
URLSearchAndReplace(url, "${version}", "%s", m_version.c_str());
URLSearchAndReplace(url, "${layer}", "%s", m_dataset.c_str());
URLSearchAndReplace(url, "${format}", "%s", m_format.c_str());
URLSearchAndReplace(url, "${x}", "%d", tiri.m_x);
URLSearchAndReplace(url, "${y}", "%d", tms_y);
URLSearchAndReplace(url, "${z}", "%d", tiri.m_level);
/* Hack for some TMS like servers that require tile numbers split into 3 groups of */
/* 3 digits, like http://tile8.geo.admin.ch/geoadmin/ch.swisstopo.pixelkarte-farbe */
URLSearchAndReplace(url, "${xxx}", "%03d/%03d/%03d", tiri.m_x / 1000000, (tiri.m_x / 1000) % 1000, tiri.m_x % 1000);
URLSearchAndReplace(url, "${yyy}", "%03d/%03d/%03d", tms_y / 1000000, (tms_y / 1000) % 1000, tms_y % 1000);
}
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