[59] | 1 | ;+ |
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[101] | 2 | ; @file_comments click on a map and find in which cell the click was |
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[59] | 3 | ; |
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[101] | 4 | ; @categories finding where is a point on a grid |
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[59] | 5 | ; |
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[101] | 6 | ; @examples |
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[59] | 7 | ; |
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| 8 | ; res = clickincell() |
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| 9 | ; Click with the left button to select a cell. Clicking one more |
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| 10 | ; time in the same cell remove the cell from the selection. |
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| 11 | ; Click on the right button to quit. |
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| 12 | ; |
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[101] | 13 | ; @keyword CELLTYPE = 'T', 'W', 'U', 'V' or 'F' This this the type of point |
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[59] | 14 | ; that is located in the center of the cell which the click is |
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[69] | 15 | ; located. default is T type of cell (with corner defined by F |
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[59] | 16 | ; points). |
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| 17 | ; |
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[101] | 18 | ; @keyword /DRAWCELL to draw the cell in which we clicked |
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[59] | 19 | ; |
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[101] | 20 | ; @keyword COLOR the color used to draw the cells (Clicking one more |
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[59] | 21 | ; time in the same cell will draw the cell with the white color) |
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| 22 | ; |
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[101] | 23 | ; @keyword /ORIGINAL to get the position of the cell regarding the original |
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[59] | 24 | ; grid (with no key_shift, ixminmesh, iyminmesh...) |
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| 25 | ; |
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[101] | 26 | ; @keyword /IJ see outpus |
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[59] | 27 | ; |
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[101] | 28 | ; @keyword _EXTRA to pass extra keywords to inquad and plot (when /drawcell) |
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[59] | 29 | ; |
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[101] | 30 | ; @returns |
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| 31 | ; the index of the selected cells regarding to the grid which |
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[59] | 32 | ; is in memory in the variable of the common. If /ij keyword is |
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| 33 | ; activated give 2D array (2, n) which are the i,j position of the |
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| 34 | ; n selected cells. |
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| 35 | ; |
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[101] | 36 | ; @uses common.pro |
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[59] | 37 | ; |
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[101] | 38 | ; @examples |
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[59] | 39 | ; |
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| 40 | ; IDL> plt, findgen(jpi,jpj),/nodata,map=[90,0,0],/ortho |
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| 41 | ; IDL> print, clickincell(/draw,color=150,/xy) |
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| 42 | ; |
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[101] | 43 | ; @history |
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| 44 | ; Sebastien Masson (smasson\@lodyc.jussieu.fr) |
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[59] | 45 | ; August 2003 |
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| 46 | ; |
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| 47 | ;- |
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| 48 | FUNCTION clickincell, CELLTYPE = celltype, DRAWCELL = drawcell, COLOR = color, ORIGINAL = original, IJ = ij, _EXTRA = extra |
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| 49 | @common |
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| 50 | ; |
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| 51 | ; initialization |
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| 52 | cellnum = -1L |
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| 53 | selected = 0 |
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| 54 | ; |
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| 55 | ; Cell list |
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| 56 | ; get the grid parameter according to celltype |
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| 57 | oldgrid = vargrid |
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| 58 | IF NOT keyword_set(celltype) THEN celltype = 'T' |
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| 59 | CASE strupcase(celltype) OF |
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| 60 | 'T':vargrid = 'F' |
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| 61 | 'W':vargrid = 'F' |
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| 62 | 'U':vargrid = 'V' |
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| 63 | 'V':vargrid = 'U' |
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| 64 | 'F':vargrid = 'T' |
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| 65 | ENDCASE |
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| 66 | grille, -1, glam, gphi, -1, nx, ny, nz, firstx, firsty, firstz, lastx, lasty, lastz |
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| 67 | vargrid = oldgrid |
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| 68 | ; define the corner of the cells in the clockwise direction |
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| 69 | IF keyword_set(key_periodic) AND nx EQ jpi THEN BEGIN |
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| 70 | x1 = glam[*, 0:ny-2] |
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| 71 | y1 = gphi[*, 0:ny-2] |
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| 72 | x2 = glam[*, 1:ny-1] |
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| 73 | y2 = gphi[*, 1:ny-1] |
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| 74 | x3 = shift(glam[*, 1:ny-1], -1, 0) |
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| 75 | y3 = shift(gphi[*, 1:ny-1], -1, 0) |
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| 76 | x4 = shift(glam[*, 0:ny-2], -1, 0) |
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| 77 | y4 = shift(gphi[*, 0:ny-2], -1, 0) |
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| 78 | ENDIF ELSE BEGIN |
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| 79 | x1 = glam[0:nx-2, 0:ny-2] |
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| 80 | y1 = gphi[0:nx-2, 0:ny-2] |
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| 81 | x2 = glam[0:nx-2, 1:ny-1] |
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| 82 | y2 = gphi[0:nx-2, 1:ny-1] |
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| 83 | x3 = glam[1:nx-1, 1:ny-1] |
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| 84 | y3 = gphi[1:nx-1, 1:ny-1] |
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| 85 | x4 = glam[1:nx-1, 0:ny-2] |
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| 86 | y4 = gphi[1:nx-1, 0:ny-2] |
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| 87 | ENDELSE |
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| 88 | glam = -1 ; free memory |
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| 89 | gphi = -1 ; free memory |
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| 90 | ; |
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| 91 | ; get mousse position on the reference map |
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| 92 | cursor, x, y, /data, /up |
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| 93 | ; |
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| 94 | while (!mouse.button ne 4) do BEGIN |
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| 95 | IF finite(x)*finite(x) EQ 0 THEN GOTO, outwhile |
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| 96 | ; |
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| 97 | case !mouse.button of |
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| 98 | 1:BEGIN |
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| 99 | ; What is the longitude? |
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| 100 | WHILE x GT !x.range[1] DO x = x-360 |
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| 101 | WHILE x LT !x.range[0] DO x = x+360 |
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| 102 | IF x GT !x.range[1] THEN GOTO, outwhile |
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| 103 | IF y GT !y.range[1] THEN GOTO, outwhile |
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| 104 | IF y LT !y.range[0] THEN GOTO, outwhile |
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| 105 | ; |
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| 106 | cell = inquad(x, y, x1, y1, x2, y2, x3, y3, x4, y4 $ |
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| 107 | , /onsphere, _extra = extra) |
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| 108 | ; |
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| 109 | IF cell[0] EQ -1 OR n_elements(cell) GT 1 THEN GOTO, outwhile |
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| 110 | cell = cell[0] |
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| 111 | already = (where(cellnum EQ cell))[0] |
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| 112 | IF already EQ -1 THEN BEGIN |
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| 113 | cellnum = [cellnum, cell] |
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| 114 | selected = [selected, 1] |
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| 115 | already = n_elements(selected)-1 |
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| 116 | ENDIF ELSE selected[already] = 1-selected[already] |
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| 117 | IF keyword_set(drawcell) THEN BEGIN |
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| 118 | oplot, [x1[cell], x2[cell], x3[cell], x4[cell], x1[cell]] $ |
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| 119 | , [y1[cell], y2[cell], y3[cell], y4[cell], y1[cell]] $ |
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| 120 | , color = color*selected[already] $ |
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| 121 | + (!d.n_colors < 255)*(1-selected[already]) $ |
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| 122 | , _extra = extra |
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| 123 | ENDIF |
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| 124 | END |
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| 125 | 2: ; middle button |
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| 126 | ELSE: |
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| 127 | ENDCASE |
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| 128 | ; get mousse position on the reference map |
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| 129 | outwhile: |
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| 130 | cursor, x, y, /data, /up |
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| 131 | ENDWHILE |
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| 132 | ; |
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| 133 | good = where(selected NE 0) |
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| 134 | IF good[0] EQ -1 THEN RETURN, -1 |
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| 135 | ; |
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| 136 | cellnum = cellnum[good] |
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| 137 | ; |
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| 138 | yy = cellnum/(nx-1+key_periodic*(nx EQ jpi)) |
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| 139 | xx = cellnum MOD (nx-1+key_periodic*(nx EQ jpi)) |
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| 140 | ; |
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| 141 | CASE strupcase(celltype) OF |
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| 142 | 'T':BEGIN |
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| 143 | xx = xx+firstx+1 |
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| 144 | yy = yy+firsty+1 |
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| 145 | END |
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| 146 | 'W':BEGIN |
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| 147 | xx = xx+firstx+1 |
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| 148 | yy = yy+firsty+1 |
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| 149 | END |
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| 150 | 'U':BEGIN |
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| 151 | xx = xx+firstx |
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| 152 | yy = yy+firsty+1 |
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| 153 | END |
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| 154 | 'V':BEGIN |
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| 155 | xx = xx+firstx+1 |
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| 156 | yy = yy+firsty |
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| 157 | END |
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| 158 | 'F':BEGIN |
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| 159 | xx = xx+firstx |
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| 160 | yy = yy+firsty |
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| 161 | END |
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| 162 | ENDCASE |
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| 163 | ; |
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| 164 | bad = where(xx GE jpi) |
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| 165 | IF bad[0] NE -1 THEN BEGIN |
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| 166 | xx[bad] = xx[bad]-jpi |
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| 167 | yy[bad] = yy[bad]+1 |
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| 168 | ENDIF |
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| 169 | bad = where(yy GE jpj) |
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| 170 | IF bad[0] NE -1 THEN stop |
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| 171 | ; |
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| 172 | IF keyword_set(original) THEN BEGIN |
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| 173 | xx = xx-key_shift |
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| 174 | bad = where(xx LT 0) |
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| 175 | IF bad[0] NE -1 THEN xx[bad] = xx[bad]+jpi |
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| 176 | xx = xx MOD jpi |
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| 177 | xx = xx +ixminmesh |
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| 178 | yy = yy+iyminmesh |
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| 179 | ENDIF |
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| 180 | ; |
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| 181 | ncell = n_elements(xx) |
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| 182 | IF keyword_set(ij) THEN $ |
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| 183 | RETURN, [reform(xx, 1, ncell, /over) $ |
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| 184 | , reform(yy, 1, ncell, /over)] |
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| 185 | ; |
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| 186 | IF keyword_set(original) THEN RETURN, xx+jpiglo*yy $ |
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| 187 | ELSE RETURN, xx+jpi*yy |
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| 188 | END |
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