[ncl-talk] problem with curlyvector

[Dennis Shea]

Hello,

You can ftp the file and a clean script to:

ftp ftp.cgd.ucar.edu
anonymous
your_email
cd incoming
put data_file
put clean_script.ncl
quit

Please send an email to ncl-talk *after* successful file transfer

Happy New Year!


On Tue, Dec 20, 2016 at 3:17 PM, Francesco Trotta <
francesco.trotta4 at unibo.it> wrote:

> Dear Ncl team,
>    I'm using NCL - version 6.3.0
>    I would like to create a map with curved vector style
>
>    I’m using vcres at vcGlyphStyle = "CurlyVector" but same regions in the
> area are empty of vector (attachment1).
>    When I use vcres at vcGlyphStyle = “lineArrow” all is ok. (attachment2)
>
>    How can I solve this problem?
>
> thanks
> Francesco
> ;===========================================================
>
>    wks = gsn_open_wks(typefile,namefile)
>    setvalues NhlGetWorkspaceObjectId()
>        "wsMaximumSize" : 300000000
>    end setvalues
>    gsn_define_colormap(wks,colorsMap)
>
>    res = True
>    ;--- Title attributes --------------------------------------
>    if(ltitle) then res at tiMainString = titleplot+" "+inforun
>    else res at tiMainString = "" end if
>    res at tiMainFont     = 0
>    res at tiMainPosition = "Center"
>    res at tiMainFontHeightF = 0.011
>    res at tiMainOffsetYF = 0.01
>    ;--- (gsn) attributes --------------------------------------
>    res at gsnDraw         = False
>    res at gsnFrame        = False
>    res at gsnMaximize     = True
>    res at gsnAddCyclic    = False
>    res at gsnSpreadColors = True
>    res at gsnPaperOrientation = "landscape"
>    if(lLeftString) then res at gsnLeftString = LeftString
>    else res at gsnLeftString = "" end if
>    res at gsnLeftStringFontHeightF = 11
>    if(lRightString) then res at gsnRightString = field at units
>    else res at gsnRightString = "" end if
>    ;--- Map attributes (window) ----------------------------------
>    res at mpLimitMode = "LatLon"      ; Zoom in on the plot area.
>    res at mpMinLatF   = minLatF
>    res at mpMaxLatF   = maxLatF
>    res at mpMinLonF   = minLonF
>    res at mpMaxLonF   = maxLonF
>    ;--- Map attributes (land outlines) -------------------
>  res at mpDataBaseVersion = "HighRes"           ;use GMT coastline
>    res at mpOutlineOn       = lmapOutlineOn       ;turn on continental
> outlines
>    res at mpOutlineBoundarySets = "AllBoundaries" ;turn on country
> boundaries (all the boundaries database in use)
>    res at mpGeophysicalLineThicknessF = 2.5       ;thickness of outlines
>    res at mpGeophysicalLineColor= "Black"         ;color of cont. outlines
>    res at mpOutlineDrawOrder    = "PostDraw"      ;draw continental outline
> last
>    res at mpFillOn              = lmapFillOn      ;turn on gray fill for
> continental background
>    res at mpFillDrawOrder       = "PreDraw"       ;draw area fill first
>    res at pmTickMarkDisplayMode  = "Always"
>    ;--- Map attributes (lat/lon grid lines) -------------------
>    res at mpGridAndLimbOn        = False          ;turn on lat/lon lines
>    res at mpGridLineDashPattern  = 2              ;... with xxxx lines
>    res at mpGridLineColor        = "black"        ;color of the lines
>    res at mpGridLatSpacingF      = 10             ;space (in degree) between
> 2 lines
>    res at mpGridLonSpacingF      = 10             ;idem
>    res at mpGridLineThicknessF   = 2.0            ;thickness of the lines
>    res at mpGridAndLimbDrawOrder = "PostDraw"     ;draw lat/lon lines last
>    res at mpLabelFontHeightF     = 0.005          ;label font size
>    ;--- contours attributes -------------------------------
>    res at cnFillOn              = True            ;areas between levels
> filled with color
>    res at cnFillMode            = "AreaFill"      ;AreaFill
>    res at cnLevelSelectionMode  = "ManualLevels"  ;set manual contour levels
>    res at cnMinLevelValF        = minLevelVal     ;set max contour level
>    res at cnMaxLevelValF        = maxLevelVal     ;set min contour level
>    res at cnLevelSpacingF       = levelSpacing
>    res at cnLinesOn             = False           ;turn off the contour lines
>    res at cnLineLabelsOn        = False           ;turn off the line labels
>    res at cnLineLabelFontHeightF= 0.005
>    res at cnLineLabelDensityF   = 1               ;label spacing when
> cnLineLabelPlacementMode != "Constant"
>    res at cnLineLabelFontAspectF= 1               ;shape of the line label.
> > 1 :thinner characters. < 1 :wider
>    res at cnLineLabelInterval   = 1
>    res at cnInfoLabelOn         = False           ;turn off "CONTOUR FROM X
> TO X BY X" legend.
>    res at cnLabelMasking        = True            ;mask lines where label
> appear
>    ;--- LabelBar attributes -------------------------------
>    res at lbLabelBarOn       = llabbarOn
>    res at lbLabelsOn         = llabbarLabelsOn
>    res at lbTitleString      = labTitleStr+" ("+field at units+")"
>    res at lbTitlePosition    = "Bottom"
>    res at pmLabelBarOrthogonalPosF = 0.17   ; position wrt plot​
>    res at lbLabelFontHeightF = 0.015
>    res at lbTitleFontHeightF = 0.015
>    res at lbLabelStride      = 5       ; Label every 5th entry
>    res at lbLabelStrings     = "" + sprintf(labformatStr,fspan(
> minLevelVal,maxLevelVal,floattoint((maxLevelVal-
> minLevelVal)/levelSpacing)+1))
>
>    ;--- (ScalarField) attributes -------------------------------
>    res at sfXArray  = lon2d(0:ny-1,0:nx-1)
>    res at sfYArray  = lat2d(0:ny-1,0:nx-1)
>
>    ;--- vectorPlot Resources -----------------------------------
>    vcres = True
>    ;--- GSN attributes -----------------------------------------
>    vcres at gsnDraw         = False
>    vcres at gsnFrame        = False
>    vcres at gsnMaximize     = True
>    vcres at gsnAddCyclic    = False
>
>    vcres at vcRefAnnoOn     = False        ; draw the reference vector
> annotation
>    vcres at vcRefAnnoFontHeightF = 0.01
>    vcres at vcRefMagnitudeF = 0.2           ; add a reference vector
>    vcres at vcRefLengthF    = 0.045                ; what the ref length is
>    vcres at vcGlyphStyle    = "CurlyVector"        ; style of glyph used to
> represent the vector
>    vcres at vcMinDistanceF  = 0.02           ; reduce the crowding of vector
> arrows
>    vcres at vcLineArrowThicknessF = 2.0  ; change vector thickness
>    vcres at vcVectorDrawOrder = "PostDraw"         ; draw vectors last
>
>    vector = gsn_csm_vector(wks,xfield(:,:),yfield(:,:),vcres) ; generate
> the vectors
>    plot = gsn_csm_contour_map_ce(wks,field(:,:),res)
>    overlay(plot,vector)
>
>    draw(plot)
>    frame(wks)
>
>
>
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