| Product(s): | Bentley Descartes for MicroStation | ||
| Version(s): | 08.11.09.432 | ||
| Environment: | N\A | ||
| Area: | Tools | ||
| Subarea: | Edit |
TheMergetoolisusedtocopyandmergeoneormoreimagescontainedwithinadefinedareaand rasterizethe vectors elements intotherasteroutput file.Italsoprovidesthe optiontocreatemultiple output rasters rather thanasingleoutputfileandtochangethe resolutionofthefinalimages.
TheMerge Optionsdialogbox provides anumber ofoptionsthatareused todefinethecharacteristicsoftheoutputfilecreatedwiththe Mergetool.
TheOptions sectioncontainsthe followingsettings:
ElementstoProcess-Determineswhattoprocessandcanbeoneofthefollowingthreeoptions: VectorsOnly,RastersOnly orRastersandVectors.
UseLineMapping-Thissetting isusedtodefine howvectorelementswill bestampedonto theraster.Ifthissettingisturnedon, vectorswillbe rasterized asdefinedinthecurrentlinemappingattributes.Ifthissettingisturnedoff,thenthelineswill be rasterized using thefollowing defaults:
Weight 0isonepixelin width, weight1istwopixelsinwidth,weight2isthreepixelsinwidthandsoforth.
Forlinestyles, thefollowing defaultdash/gappatternswill apply:LC=0Continuous.
LC=1(Dot)2pixel dash; 6 pixel gap.LC=2(Dash)6 pixel dash;2 pixelgap
LC=3(Long Dash) 12 pixeldash; 4pixelgap
LC=4(Dash;Dot) 8 pixeldash, 3 pixelgap,2 pixeldash, 3 pixelgapLC=5(ShortDash) 4 pixel dash,4 pixelgap
LC=6(Dash;Dot;Dot) 6 pixel dash,2 pixelgap,2 pixel dash, 2 pixelgap, 2 pixeldash,2 pixelgap
LC=7(LongDash;Dot) 9 pixeldash;2 pixelgap; 3 pixeldash;2pixel gapCreateNewAttachment(s)-Thissettingdetermineswhetherornotthenew
imagewillbeattachedtothe currentmodel. Bydefault, newly attachedimageswillhavethe transparency andclipping toggles turnedon.Whenthissetting isturnedoff,theFillClipped Area is turnedonanddisabled.
FillClippedArea-Whenon, theclippedareaextendingoutsideoftheattachedimageswillbefilledwiththebackgroundcolourofthecurrentMicroStationcolortable.This setting canonlybechangedwithCreateNewAttachmentisenabled.
TheResolutionareacontainsthe following options:
SetUsing-Providesanumberofoptionsthatdefinethesizeandresolutionoftheresultingraster.Thepossible valuesare:
PixelSizeandDPIPixelSizeandScale
PixelSizeandSheetSizeNumberofpixels andDPINumberof pixels andScaleNumberofpixels andSheetSizeDPIandScale
DPIandSheetSizeExistingRaster
Theselectedoptionwillenablethe appropriatefield forfurtherediting. Forexample,selectingPixel SizeandScale willenablethe PixelSize andScale fieldsforediting whileallother fieldswillremaingreyedout.
Whena fieldiseditedtheotherfields areupdated according tothenewvalue.
WorldArea-is calculatedwiththebounding boxaroundthe selectedarea.Theunits oftheworldareavaluesaretheModel´s workingunits.
NumberofPixels -issettothenumberofscreenpixelsintheselectedinputarea.DPI-is setto 300by default.
Scaleiscalculated bymultiplyingthe PixelSizebytheDPI.
SheetSize-is calculatedbydividing the WorldAreaby theScale. TheWorld Areavalues areconvertedtothesameunits asthe SheetSize multipliedbythe DPI.
SheetUnit-isused tospecifythe units oftheSheetSizefieldsonlycanbeset to:inches,millimetersorcentimeters.
BasedonRaster-IfExistingRasterisselectedintheSetUsingfield,thenallrastersthatare includedin themergeare listedinthis field.Inadditiontotherasters, an Average optionisincluded. Theappropriateresolutionfields areupdatedbasedupontheusingthegeoreferenceinformationfromeithertheselected rasterorthe averageofall rasters.Inthecasethatthe DPI isnotavailable,a valueof300 will beused by default.
TheOutputsectionprovidesoptions for thecreationofthefinaloutputimage.
OutputType-Use to determineifthe merge resultis stored inasinglefileor inmultiplefiles.WhenMultipleFilesisselected,themergetoolwill outputindividual rastersbaseduponamapsheet index. Themapsheet indexisaseparate model that contains avectorgridused tospecify theshapeandfilenamefor each rasterthatwillbecreated duringtheoutputprocess.Thenameisderived fromatextstringwithineachshapein themapsheetindex.Whenprocessingmultiple files, Descartes scansthemapsheet index modelforall textstrings.Onceastringislocated,itperformsafloodstartingatthestringoriginandcontinuesuntilaclosed regionisdefinedby vectorelements.The textinthestringserves astheimagename. Finally,ifthemapsheetindexhassdifferentcoordinatesystem, BentleyDescarteswillreprojectthedataasrequired.
OutputOptions- OpenstheRasterSave AsSettingsdialog allowing toedittheFormat, OptionsandGeographic Information forthe outputfile(s).
GridDefinition- IfMultipleFiles isselectedintheOutputType, thisfieldisenabledto setthefilethatcontainsthe vectorgraphicsfor themapsheet index.Themapsheetindex canresideinaseparate model intheactivedesign.
Model -Liststhe available models intheselecteddesignfile.Run-Runsthemergeoperation.
- Cancel-Closesthe dialogwithoutmakinganychanges.
Support Video Clip
Click the video below to play it. To view in fullscreen mode, first click the YouTube link at the bottom of the video to launch the video on the YouTube site. Then, click the fullscreen button (rightmost button at bottom of video).
See Also
| Original Author: | Frank McAllister |