[Benchmarking] portrayal and quality observations

[Luc Donea]

Hi All,

 

We have made the following observations over the last couple of days that would be great to clarify from the teams. 

Given the lack of time left we do not necessarily expect anything to change but we think it would be good to record and document these types of issues as part of the final presentation of the numbers. 

 

Please do not take this as criticism at all!

 

1.	The Oracle Mapviewer road styling does not meet the brief. Road lines are merged and do not display the z-index properly? Eg. Roads joining highways instead of overlapping etc. 

	a.	http://12.189.158.78:8088/mapviewer/wms?LAYERS=&BASEMAP=spain_oracle&AA=true&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=1.8541809082031,41.145690917969,2.2661682128906,41.557678222657&WIDTH=600&HEIGHT=600 
	b.	http://12.189.158.78:8081/fcgi-bin/mapservfull.fcgi?MAP=/benchmarking/mapserver/spain-shapefiles.map&LAYERS=vector_benchmarking_2010&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=1.8734069824218,41.162170410156,2.2853942871094,41.574157714844&WIDTH=600&HEIGHT=600 

2.	QGIS Mapserver does not have rounded line end caps on road features 

	a.	http://12.189.158.78:8081/fcgi-bin/qgis_mapserv.fcgi?MAP=/opt/qgisms/fcgi-bin/vector.qgs&LAYERS=shp_vector&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=2.0344253540038,41.290916442871,2.2404190063476,41.496910095214&WIDTH=600&HEIGHT=600 
	b.	http://12.189.158.75:8080/erdas-apollo/vector/FOSS4GSHAPES?LAYERS=shape_vector&STYLES=prop&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=2.0344253540038,41.290916442871,2.2404190063476,41.496910095214&WIDTH=600&HEIGHT=600 

3.	Mapserver and Geoserver both have very coarse resampling which is obvious around the 1:1 pixel mark but evident at other scales as well. Is this expected or intentional? We do not want to produce "worse" raster output however there is obviously an advantage in not smoothing the result. It's interesting that geoserver and mapserver produce visually identical results (other servers weren't online to test) whereas ERDAS and Cadcorp are visually identical. 

	a.	Mapserver: http://12.189.158.78:8081/fcgi-bin/mapservfull.fcgi?map=/benchmarking/mapserver/spain-raster.map&LAYERS=raster_benchmarking_2010&FORMAT=image%2Fjpeg&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=2.4085505962381,41.519703507425,2.4117692470561,41.522922158243&WIDTH=600&HEIGHT=600 
	b.	Cadcorp: http://12.189.158.75/cadcorp/geognosis-71x.exe?VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&STYLES=&FORMAT=image%2fpng%3bPhotometricInterpretation=RGB&SRS=EPSG:4326&LAYERS=bcn-tif&BBOX=2.4085505962381,41.519703507425,2.4117692470561,41.522922158243&WIDTH=600&HEIGHT=600 
	c.	Apollo : http://12.189.158.75/ImageX/ecw_wms.dll?LAYERS=TIFF&FORMAT=image%2Fjpeg&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=2.4085505962381,41.519703507425,2.4117692470561,41.522922158243&WIDTH=600&HEIGHT=600 

 

Thanks,

 

Luc Donéa

 

ERDAS APOLLO Product Manager

ERDAS

Email: luc.donea at erdas.com <mailto:luc.donea at erdas.com> 



 

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