/****************************************************************************** * $Id$ * * Project: Arc GIS Server Client Driver * Purpose: Implementation of Dataset and RasterBand classes for WMS * and other similar services. * Author: Alexander Lisovenko * ****************************************************************************** * Copyright (c) 2014-2015, NextGIS * * 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 "wmsdriver.h" #include "minidriver_arcgis_server.h" CPP_GDALWMSMiniDriverFactory(AGS) GDALWMSMiniDriver_AGS::GDALWMSMiniDriver_AGS() { } GDALWMSMiniDriver_AGS::~GDALWMSMiniDriver_AGS() { } CPLErr GDALWMSMiniDriver_AGS::Initialize(CPLXMLNode *config) { CPLErr ret = CE_None; int i; if (ret == CE_None) { const char *base_url = CPLGetXMLValue(config, "ServerURL", ""); if (base_url[0] != '\0') { /* Try the old name */ base_url = CPLGetXMLValue(config, "ServerUrl", ""); } if (base_url[0] != '\0') { m_base_url = base_url; } else { CPLError(CE_Failure, CPLE_AppDefined, "GDALWMS, ArcGIS Server mini-driver: ServerURL missing."); ret = CE_Failure; } } if (ret == CE_None) { m_image_format = CPLGetXMLValue(config, "ImageFormat", "png"); m_transparent = CPLGetXMLValue(config, "Transparent",""); // the transparent flag needs to be "true" or "false" // in lower case according to the ArcGIS Server REST API for(i = 0; i < (int)m_transparent.size(); i++) { m_transparent[i] = (char) tolower(m_transparent[i]); } m_layers = CPLGetXMLValue(config, "Layers", ""); } if (ret == CE_None) { const char* irs = CPLGetXMLValue(config, "SRS", "102100"); if (irs != NULL) { if(STARTS_WITH_CI(irs, "EPSG:")) //if we have EPSG code just convert it to WKT { m_projection_wkt = ProjToWKT(irs); m_irs = irs + 5; } else //if we have AGS code - try if it's EPSG { m_irs = irs; m_projection_wkt = ProjToWKT("EPSG:" + m_irs); } // TODO: if we have AGS JSON } m_identification_tolerance = CPLGetXMLValue(config, "IdentificationTolerance", "2"); } if (ret == CE_None) { const char *bbox_order = CPLGetXMLValue(config, "BBoxOrder", "xyXY"); if (bbox_order[0] != '\0') { for (i = 0; i < 4; ++i) { if ((bbox_order[i] != 'x') && (bbox_order[i] != 'y') && (bbox_order[i] != 'X') && (bbox_order[i] != 'Y')) break; } if (i == 4) { m_bbox_order = bbox_order; } else { CPLError(CE_Failure, CPLE_AppDefined, "GDALWMS, ArcGIS Server mini-driver: Incorrect BBoxOrder."); ret = CE_Failure; } } else { CPLError(CE_Failure, CPLE_AppDefined, "GDALWMS, ArcGIS Server mini-driver: BBoxOrder missing."); ret = CE_Failure; } } return ret; } void GDALWMSMiniDriver_AGS::GetCapabilities(GDALWMSMiniDriverCapabilities *caps) { caps->m_capabilities_version = 1; caps->m_has_arb_overviews = 1; caps->m_has_image_request = 1; caps->m_has_tiled_image_requeset = 1; caps->m_max_overview_count = 32; } void GDALWMSMiniDriver_AGS::ImageRequest(CPLString *url, const GDALWMSImageRequestInfo &iri) { *url = m_base_url; if (m_base_url.ifind( "/export?") == std::string::npos) URLAppend(url, "/export?"); URLAppendF(url, "&f=image"); URLAppendF(url, "&bbox=%.8f,%.8f,%.8f,%.8f", GetBBoxCoord(iri, m_bbox_order[0]), GetBBoxCoord(iri, m_bbox_order[1]), GetBBoxCoord(iri, m_bbox_order[2]), GetBBoxCoord(iri, m_bbox_order[3])); URLAppendF(url, "&size=%d,%d", iri.m_sx,iri.m_sy); URLAppendF(url, "&dpi="); URLAppendF(url, "&imageSR=%s", m_irs.c_str()); URLAppendF(url, "&bboxSR=%s", m_irs.c_str()); URLAppendF(url, "&format=%s", m_image_format.c_str()); URLAppendF(url, "&layerdefs="); URLAppendF(url, "&layers=%s", m_layers.c_str()); if(m_transparent.size()) URLAppendF(url, "&transparent=%s", m_transparent.c_str()); else URLAppendF(url, "&transparent=%s", "false"); URLAppendF(url, "&time="); URLAppendF(url, "&layerTimeOptions="); URLAppendF(url, "&dynamicLayers="); CPLDebug("AGS", "URL = %s\n", url->c_str()); } void GDALWMSMiniDriver_AGS::TiledImageRequest(CPLString *url, const GDALWMSImageRequestInfo &iri, CPL_UNUSED const GDALWMSTiledImageRequestInfo &tiri) { ImageRequest(url, iri); } void GDALWMSMiniDriver_AGS::GetTiledImageInfo(CPLString *url, const GDALWMSImageRequestInfo &iri, CPL_UNUSED const GDALWMSTiledImageRequestInfo &tiri, int nXInBlock, int nYInBlock) { *url = m_base_url; if (m_base_url.ifind( "/identify?") == std::string::npos) URLAppend(url, "/identify?"); URLAppendF(url, "&f=json"); double fX = GetBBoxCoord(iri, 'x') + nXInBlock * (GetBBoxCoord(iri, 'X') - GetBBoxCoord(iri, 'x')) / iri.m_sx; double fY = GetBBoxCoord(iri, 'y') + (iri.m_sy - nYInBlock) * (GetBBoxCoord(iri, 'Y') - GetBBoxCoord(iri, 'y')) / iri.m_sy; URLAppendF(url, "&geometry=%8f,%8f", fX, fY); URLAppendF(url, "&geometryType=esriGeometryPoint"); URLAppendF(url, "&sr=%s", m_irs.c_str()); URLAppendF(url, "&layerdefs="); URLAppendF(url, "&time="); URLAppendF(url, "&layerTimeOptions="); CPLString layers("visible"); if ( m_layers.find("show") != std::string::npos ) { layers = m_layers; layers.replace( layers.find("show"), 4, "all" ); } if ( m_layers.find("hide") != std::string::npos ) { layers = "top"; } if ( m_layers.find("include") != std::string::npos ) { layers = "top"; } if ( m_layers.find("exclude") != std::string::npos ) { layers = "top"; } URLAppendF(url, "&layers=%s", layers.c_str()); URLAppendF(url, "&tolerance=%s", m_identification_tolerance.c_str()); URLAppendF(url, "&mapExtent=%.8f,%.8f,%.8f,%.8f", GetBBoxCoord(iri, m_bbox_order[0]), GetBBoxCoord(iri, m_bbox_order[1]), GetBBoxCoord(iri, m_bbox_order[2]), GetBBoxCoord(iri, m_bbox_order[3])); URLAppendF(url, "&imageDisplay=%d,%d,96", iri.m_sx,iri.m_sy); URLAppendF(url, "&returnGeometry=false"); URLAppendF(url, "&maxAllowableOffset="); CPLDebug("AGS", "URL = %s", url->c_str()); } const char *GDALWMSMiniDriver_AGS::GetProjectionInWKT() { return m_projection_wkt.c_str(); } double GDALWMSMiniDriver_AGS::GetBBoxCoord(const GDALWMSImageRequestInfo &iri, char what) { switch (what) { case 'x': return MIN(iri.m_x0, iri.m_x1); case 'y': return MIN(iri.m_y0, iri.m_y1); case 'X': return MAX(iri.m_x0, iri.m_x1); case 'Y': return MAX(iri.m_y0, iri.m_y1); } return 0.0; }