Re: Tickmarks

Hi Mateus,

The problem is that, for historical reasons, the gsn_csm...map
routines have 2 possible tickmark objects. When they were originally
designed, tickmarks for maps had not been implemented, and therefore
these routine create a tickmark object at the NCL level and attach
them to the map. For backwards compatibility this feature was kept
when the MapPlot tickmarks were implemented at the HLU (C) level. That
is also why the map tickmark display mode defaults to "Never". You can
choose one or the other of the tickmark object depending on your
preference.

If you want the NCL-level tickmarks just leave pmTickMarkDisplayMode
at its default setting of "Never".

Oh the other hand if you would rather have the built-in MapPlot
tickmarks, after the call to

mapaSULSUD = gsn_csm_map( wks, geral )

you can do this:

destroy(mapaSULSUD_at_tickmarks)

  -dave

On Sep 25, 2009, at 5:31 PM, Mateus Teixeira wrote:

> Dear NCL users,
>
> I'm trying to plot two maps. I turn off X bottom and Y left axes in
> the first map and turn them on in the second. When I use
>
> pmTickMarkDisplayMode = "Always"
>
> I'm getting wrong tickmarks in the second plot. In some latitudes and
> longitudes there are two labels, but a little displaced each other.
> Please, see the script below:
>
>
> wks = gsn_open_wks( "ps",
> "mapaAmericaSul_Brazil" )
>
> geral = True
> geral_at_gsnMaximize = True
> geral_at_mpFillOn = True
> geral_at_mpMonoFillColor = True
> geral_at_mpFillColor = -1 ; transparente, poupa
> espaço
> geral_at_mpDataSetName = "Earth..4"
> geral_at_mpDataBaseVersion = "MediumRes"
> geral_at_mpOutlineOn = True
> geral_at_mpOutlineBoundarySets = "National"
> geral_at_mpOutlineSpecifiers = (/"Brazil:states"/)
>
> geral_at_mpFillAreaSpecifiers = (/"Brazil:Rio Grande do
> Sul", \
> "Brazil:Santa
> Catarina", \
>
> "Brazil:Parana", \
> "Brazil:Sao
> Paulo", \
> "Brazil:Rio de
> Janeiro", \
> "Brazil:Minas
> Gerais", \
> "Brazil:Espirito
> Santo" /)
> geral_at_mpSpecifiedFillColors =
> (/"gray35","gray35","gray35","gray60", \
> "gray60","gray60","gray60"/)
>
> geral_at_mpMinLonF = 270.
> geral_at_mpMaxLonF = 330.
> geral_at_mpMinLatF = -60.
> geral_at_mpMaxLatF = 15.
>
> geral_at_pmTickMarkDisplayMode = "Always"
> geral_at_tmYLLabelFontHeightF = 0.017
> geral_at_tmXBOn = False
> geral_at_tmYLOn = False
>
>
> mapaAS = gsn_csm_map( wks, geral )
>
> ; SEGUNDO MAPA, ZOOM SOBRE AS REGIOES SUL E SUDESTE DO BRASIL
> geral_at_gsnDraw = False
> geral_at_gsnFrame = False
> geral_at_mpMinLonF = 301.
> geral_at_mpMaxLonF = 322.
> geral_at_mpMinLatF = -40.
> geral_at_mpMaxLatF = -13.
> geral_at_tmXBOn = True
> geral_at_tmYLOn = True
>
> mapaSULSUD = gsn_csm_map( wks, geral )
>
> nomeEstados =
> (/"RS","SC","PR","SP","MG","RJ","ES"/)
> localNomesX =
> (/-53.5,-50.0,-52.0,-49.0,-44.0,-42.0,-39.5/)
> localNomesY =
> (/-29.5,-27.5,-25.0,-22.0,-18.0,-23.5,-20.5/)
> textoRes = True
> textoRes_at_txFontHeightF = 0.02
>
> nomesRegioes = gsn_add_text( wks, mapaSULSUD,
> nomeEstados, \
> localNomesX, localNomesY,
> textoRes )
>
> draw(mapaSULSUD)
> frame(wks)
>
> I couldn't understand what is happening. I can't see a source for this
> error. The second plot is attached.
>
> Best regards,
>
> --
> Mateus da Silva Teixeira
> Meteorologista
> Instituto de Pesquisas Meteorológicas - IPMet
> Universidade Estadual Paulista - UNESP
> Av. Luis Edmundo Carrijo Coube, 14-01 - Cx. Postal 281 - CEP 17033-360
> Bauru - SP - Brasil
> Fone: +55 14 3103-6030 / fax: 3203-3649
>
> Registered Linux User #466740 (http://counter.li.org/)
> <
> mapaAmericaSul_Brazil
> -1.png>_______________________________________________
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Received on Fri Sep 25 2009 - 18:42:19 MDT