| 1 | ;------------------------------------------------------------ |
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| 2 | ;------------------------------------------------------------ |
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| 3 | ;------------------------------------------------------------ |
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| 4 | ;+ |
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| 5 | ; NAME:computehopegrid |
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| 6 | ; |
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| 7 | ; PURPOSE: |
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| 8 | ; |
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| 9 | ; CATEGORY:grille |
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| 10 | ; |
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| 11 | ; CALLING SEQUENCE:computehopegrid |
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| 12 | ; |
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| 13 | ; INPUTS: |
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| 14 | ; |
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| 15 | ; KEYWORD PARAMETERS: |
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| 16 | ; |
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| 17 | ; OUTPUTS: |
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| 18 | ; |
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| 19 | ; COMMON BLOCKS:common.pro |
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| 20 | ; |
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| 21 | ; SIDE EFFECTS: |
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| 22 | ; |
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| 23 | ; RESTRICTIONS: |
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| 24 | ; |
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| 25 | ; EXAMPLE: |
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| 26 | ; |
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| 27 | ; MODIFICATION HISTORY:Sebastien Masson (smasson@lodyc.jussieu.fr) |
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| 28 | ; 2001-06 |
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| 29 | ;- |
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| 30 | ;------------------------------------------------------------ |
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| 31 | ;------------------------------------------------------------ |
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| 32 | ;------------------------------------------------------------ |
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| 33 | PRO computehopegrid, xaxis, yaxis, zaxis, linetype, FORTHEMASK = forthemask, WPOINT = wpoint, FIRSTS = firsts, LASTS = lasts, PTTYPE = pttype |
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| 34 | ;--------------------------------------------------------- |
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| 35 | @cm_4mesh |
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| 36 | @cm_4data |
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| 37 | IF NOT keyword_set(key_forgetold) THEN BEGIN |
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| 38 | @updatenew |
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| 39 | ENDIF |
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| 40 | ;--------------------------------------------------------- |
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| 41 | ;------------------------------------------------------------ |
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| 42 | if not (keyword_set(scalar)*keyword_set(vector)) then scalar=1 |
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| 43 | ;------------------------------------------------------------ |
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| 44 | jpiglo = n_elements(xaxis) |
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| 45 | jpjglo = n_elements(yaxis) |
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| 46 | jpkglo = n_elements(zaxis) |
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| 47 | ; |
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| 48 | jpi = jpiglo |
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| 49 | jpj = jpjglo |
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| 50 | jpk = jpkglo |
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| 51 | ; |
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| 52 | if NOT keyword_set(firsts) then firsts = [0, 0, 0] |
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| 53 | if NOT keyword_set(lasts) then lasts = [jpi-1, jpj-1, jpk-1] |
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| 54 | ; |
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| 55 | ; depermination of the grid type and of the point type |
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| 56 | ; |
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| 57 | if keyword_set(pttype) then vargrid = pttype |
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| 58 | if linetype EQ 'odd-even' then key_gridtype = 'e' ELSE key_gridtype = 'c' |
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| 59 | ; |
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| 60 | ; computation of the horizontal grid |
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| 61 | ; |
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| 62 | if key_gridtype EQ 'e' then begin |
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| 63 | if vargrid EQ 'T' then begin |
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| 64 | glamt=xaxis |
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| 65 | glamt = glamt#replicate(1, jpj) |
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| 66 | xstep=(glamt[1,0]-glamt[0,0])/2. |
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| 67 | glamt[*,2*lindgen((jpj)/2)]=glamt[*,2*lindgen(jpj/2)]-xstep |
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| 68 | glamu=glamt+xstep |
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| 69 | ENDIF ELSE BEGIN |
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| 70 | glamu=xaxis |
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| 71 | glamu = glamu#replicate(1, jpj) |
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| 72 | xstep=(glamu[1,0]-glamu[0,0])/2. |
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| 73 | glamu[*,2*lindgen((jpj)/2)]=glamu[*,2*lindgen(jpj/2)]-xstep |
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| 74 | glamt=glamu-xstep |
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| 75 | ENDELSE |
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| 76 | ;zoom |
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| 77 | glamt = glamt[firsts[0]:lasts[0], firsts[1]:lasts[1]] |
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| 78 | glamu = glamu[firsts[0]:lasts[0], firsts[1]:lasts[1]] |
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| 79 | jpiglo = lasts[0]-firsts[0]+1 |
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| 80 | jpi = jpiglo |
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| 81 | jpjglo = lasts[1]-firsts[1]+1 |
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| 82 | jpj = jpjglo |
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| 83 | glamv = glamu |
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| 84 | glamf = glamu |
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| 85 | gphit = yaxis[firsts[1]:lasts[1]] |
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| 86 | gphit = replicate(1, jpi)#gphit |
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| 87 | gphif = gphit |
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| 88 | gphiu = gphit |
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| 89 | gphiv = gphif |
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| 90 | ENDIF ELSE BEGIN |
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| 91 | if vargrid eq 'T' then begin |
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| 92 | glamt=xaxis |
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| 93 | glamt = glamt#replicate(1, jpj) |
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| 94 | glamu=glamt+(glamt[1,0]-glamt[0,0])/2. |
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| 95 | ENDIF ELSE BEGIN |
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| 96 | glamu=xaxis |
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| 97 | glamu = glamu#replicate(1, jpj) |
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| 98 | xstep=(glamu[1,0]-glamu[0,0])/2. |
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| 99 | glamt=glamu-(glamu[1,0]-glamu[0,0])/2. |
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| 100 | ENDELSE |
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| 101 | ;zoom |
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| 102 | glamt = glamt[firsts[0]:lasts[0], firsts[1]:lasts[1]] |
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| 103 | glamu = glamu[firsts[0]:lasts[0], firsts[1]:lasts[1]] |
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| 104 | jpiglo = lasts[0]-firsts[0]+1 |
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| 105 | jpi = jpiglo |
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| 106 | jpjglo = lasts[1]-firsts[1]+1 |
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| 107 | jpj = jpjglo |
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| 108 | glamv = glamt |
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| 109 | glamf = glamu |
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| 110 | gphit = yaxis[firsts[1]:lasts[1]] |
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| 111 | gphit = replicate(1, jpi)#gphit |
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| 112 | gphiu = gphit |
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| 113 | if jpj GT 1 then begin |
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| 114 | gphiv = gphit+(gphit[0, 1]-gphit[0, 0])/2. |
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| 115 | gphif = gphit+(gphit[0, 1]-gphit[0, 0])/2. |
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| 116 | ENDIF ELSE BEGIN |
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| 117 | gphiv = gphit |
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| 118 | gphif = gphit |
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| 119 | ENDELSE |
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| 120 | ENDELSE |
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| 121 | ; |
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| 122 | ; computation of the vertical grid |
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| 123 | ; |
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| 124 | if keyword_set(wpoint) then begin |
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| 125 | gdepw = zaxis |
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| 126 | if jpk ne 1 then begin |
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| 127 | gdept=(shift(gdepw, -1)+gdepw)/2. |
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| 128 | gdept[jpk-1]=gdepw[jpk-1]+.5*(gdepw[jpk-1]-gdepw[jpk-2]) |
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| 129 | endif else gdept=zaxis |
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| 130 | endif else begin |
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| 131 | gdept = zaxis |
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| 132 | if jpk ne 1 then begin |
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| 133 | gdepw=(shift(gdept, 1)+gdept)/2. |
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| 134 | gdepw[0]=0 |
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| 135 | endif else gdepw = zaxis |
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| 136 | endelse |
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| 137 | ; |
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| 138 | ; computation of the vertical scale factors |
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| 139 | ; |
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| 140 | if jpk ne 1 then begin |
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| 141 | e3t = abs(shift(gdepw,-1)-gdepw) |
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| 142 | e3t[jpk-1] = abs(gdept[jpk-1]-gdepw[jpk-1]) |
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| 143 | e3w = abs(gdept-shift(gdept,1)) |
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| 144 | e3w[0] = abs(gdept[0]-gdepw[0]) |
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| 145 | endif else begin |
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| 146 | e3t=1 |
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| 147 | e3w=1 |
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| 148 | endelse |
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| 149 | ; zoom |
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| 150 | gdept = gdept[firsts[2]:lasts[2]] |
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| 151 | gdepw = gdepw[firsts[2]:lasts[2]] |
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| 152 | e3t = e3t[firsts[2]:lasts[2]] |
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| 153 | e3w = e3w[firsts[2]:lasts[2]] |
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| 154 | jpkglo = lasts[2]-firsts[2]+1 |
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| 155 | jpk = jpkglo |
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| 156 | ; |
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| 157 | ; computation of the horizontal scale factors |
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| 158 | ; |
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| 159 | e1t = replicate(1b,jpi,jpj) |
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| 160 | e2t = replicate(1b,jpi,jpj) |
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| 161 | e1u = e1t |
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| 162 | e2u = e2t |
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| 163 | e1v = e1t |
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| 164 | e2v = e2t |
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| 165 | e1f = e1t |
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| 166 | e2f = e2t |
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| 167 | ; |
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| 168 | ; mask |
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| 169 | ; |
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| 170 | tmask = replicate(1b, jpi, jpj, jpk) |
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| 171 | if keyword_set(forthemask) then BEGIN |
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| 172 | land=where(forthemask ge valmask/10) |
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| 173 | if land[0] ne -1 then tmask[land] = 0b |
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| 174 | endif |
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| 175 | umaskred = replicate(1, jpj, jpk) |
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| 176 | vmaskred = replicate(1, jpi, jpk) |
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| 177 | fmaskredy = replicate(1, jpj, jpk) |
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| 178 | fmaskredx = replicate(1, jpi, jpk) |
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| 179 | @updateold |
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| 180 | domdef |
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| 181 | if keyword_set(firsts) AND keyword_set(lasts) then BEGIN |
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| 182 | if vargrid EQ 'T' then BEGIN |
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| 183 | if jpj GT 1 then begin |
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| 184 | lon1 = min(glamt[0, [0, 1]]) |
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| 185 | lon2 = max(glamt[jpi-1, [0, 1]]) |
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| 186 | endif ELSE BEGIN |
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| 187 | lon1 = min(glamt[0, 0]) |
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| 188 | lon2 = max(glamt[jpi-1, [0]]) |
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| 189 | ENDELSE |
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| 190 | ENDIF ELSE BEGIN |
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| 191 | if jpj GT 1 then begin |
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| 192 | lon1 = min(glamu[0, [0, 1]]) |
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| 193 | lon2 = max(glamu[jpi-1, [0, 1]]) |
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| 194 | endif ELSE BEGIN |
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| 195 | lon1 = min(glamu[0, 0]) |
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| 196 | lon2 = max(glamu[jpi-1, 0]) |
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| 197 | ENDELSE |
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| 198 | ENDELSE |
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| 199 | lat1 = min([gphit[0, 0], gphit[0, jpj-1]]) |
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| 200 | lat2 = max([gphit[0, 0], gphit[0, jpj-1]]) |
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| 201 | domdef, lon1, lon2, lat1, lat2, gdepw[0], gdept[jpk-1], gridtype = vargrid |
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| 202 | ENDIF |
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| 203 | ; |
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| 204 | ixminmesh =0l |
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| 205 | ixmaxmesh =long(jpi-1) |
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| 206 | iyminmesh =0l |
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| 207 | iymaxmesh =long(jpj-1) |
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| 208 | izminmesh =0l |
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| 209 | izmaxmesh =long(jpk-1) |
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| 210 | ;---------------------------------------------------------- |
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| 211 | ; for the triangulation |
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| 212 | ;---------------------------------------------------------- |
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| 213 | key_periodic = glamt[0] EQ ((glamt[jpi-1]+glamt[+1]-glamt[0]) MOD 360) |
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| 214 | if jpi gt 4 AND jpj GT 4 then begin |
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| 215 | triangles_list = triangule(shifted = glamt[0, 0] LT glamt[0, 1]) |
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| 216 | twin_corners_up=-1 |
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| 217 | twin_corners_dn=-1 |
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| 218 | ENDIF ELSE BEGIN |
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| 219 | triangles_list=-1 |
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| 220 | twin_corners_up=-1 |
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| 221 | twin_corners_dn=-1 |
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| 222 | ENDELSE |
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| 223 | ;------------------------------------------------------------ |
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| 224 | IF NOT keyword_set(key_forgetold) THEN BEGIN |
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| 225 | @updateold |
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| 226 | ENDIF |
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| 227 | ;------------------------------------------------------------ |
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| 228 | return |
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| 229 | end |
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| 230 | |
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| 231 | |
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