Problems with jit.submatrix and cropping


    Mar 19 2009 | 1:28 am
    Hello , I am trying to cut from a movie into smaller pieces using jit.submatrix.
    The original footage has a resolution of 720x576.
    But I am interested in filling 8 rects that are in 2 different dimentions:
    little piece dim 130x130 big piece dim 230x130
    ..and they are positioned like this..
    little piece / big piece /big piece/ little piece little piece / big piece /big piece/ little piece
    And I am interested in the middle part of the image, so 158pixels from the upper part and 158pixels from the lower part will not be seen.
    So the whole image that will result (the 8 images put together) will have a resolution of 720x260.
    The only problem is jit.submatrix doesn't seem to work as it should. The image is not recomposed as it should, even though I think I set the parameters (meaning the offsets) right!
    PS: Also can you suggest any other ideas (objects) I can use for cropping?
    Thank you very much.
    This is the patch:
    { "patcher" : { "fileversion" : 1, "rect" : [ 0.0, 44.0, 1440.0, 826.0 ], "bglocked" : 0, "defrect" : [ 0.0, 44.0, 1440.0, 826.0 ], "openrect" : [ 0.0, 0.0, 0.0, 0.0 ], "openinpresentation" : 0, "default_fontsize" : 12.0, "default_fontface" : 0, "default_fontname" : "Arial", "gridonopen" : 0, "gridsize" : [ 15.0, 15.0 ], "gridsnaponopen" : 0, "toolbarvisible" : 1, "boxanimatetime" : 200, "imprint" : 0, "boxes" : [ { "box" : { "maxclass" : "comment", "text" : "the movie must have a resolution of 720x576", "linecount" : 2, "patching_rect" : [ 192.0, 52.0, 150.0, 34.0 ], "fontname" : "Arial", "frgb" : [ 0.941176, 0.007843, 0.007843, 1.0 ], "id" : "obj-1", "textcolor" : [ 0.941176, 0.007843, 0.007843, 1.0 ], "fontsize" : 12.0, "numinlets" : 1, "numoutlets" : 0 }
    } , { "box" : { "maxclass" : "jit.fpsgui", "outlettype" : [ "", "" ], "patching_rect" : [ 514.0, 223.0, 80.0, 36.0 ], "fontname" : "Arial", "mode" : 3, "id" : "obj-628", "fontsize" : 12.0, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "jit.fpsgui", "outlettype" : [ "", "" ], "patching_rect" : [ 112.0, 223.0, 80.0, 36.0 ], "fontname" : "Arial", "mode" : 3, "id" : "obj-627", "fontsize" : 12.0, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "jit.pwindow", "outlettype" : [ "", "" ], "patching_rect" : [ 695.0, 584.0, 130.0, 130.0 ], "id" : "obj-626", "numinlets" : 1, "presentation_rect" : [ 974.0, 2629.0, 130.0, 130.0 ], "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "jit.pwindow", "outlettype" : [ "", "" ], "patching_rect" : [ 462.0, 450.0, 230.0, 130.0 ], "id" : "obj-625", "numinlets" : 1, "presentation_rect" : [ 60.0, 60.0, 230.0, 130.0 ], "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "jit.pwindow", "outlettype" : [ "", "" ], "patching_rect" : [ 229.0, 584.0, 230.0, 130.0 ], "id" : "obj-624", "numinlets" : 1, "presentation_rect" : [ 45.0, 45.0, 230.0, 130.0 ], "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "jit.pwindow", "outlettype" : [ "", "" ], "patching_rect" : [ 462.0, 584.0, 230.0, 130.0 ], "id" : "obj-623", "numinlets" : 1, "presentation_rect" : [ 450.0, 1230.0, 230.0, 130.0 ], "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "jit.pwindow", "outlettype" : [ "", "" ], "patching_rect" : [ 695.0, 450.0, 130.0, 130.0 ], "id" : "obj-622", "numinlets" : 1, "presentation_rect" : [ 242.0, 1268.0, 130.0, 130.0 ], "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "jit.pwindow", "outlettype" : [ "", "" ], "patching_rect" : [ 97.0, 584.0, 130.0, 130.0 ], "id" : "obj-621", "numinlets" : 1, "presentation_rect" : [ 152.0, 1217.0, 130.0, 130.0 ], "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "jit.fpsgui", "outlettype" : [ "", "" ], "patching_rect" : [ 357.0, 223.0, 80.0, 36.0 ], "fontname" : "Arial", "mode" : 3, "id" : "obj-619", "fontsize" : 12.0, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "flonum", "outlettype" : [ "float", "bang" ], "patching_rect" : [ 568.0, 34.0, 46.0, 20.0 ], "fontname" : "Arial", "triscale" : 0.9, "id" : "obj-617", "fontsize" : 11.595187, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "message", "text" : "vol $1", "outlettype" : [ "" ], "patching_rect" : [ 568.0, 59.0, 39.0, 18.0 ], "fontname" : "Arial", "id" : "obj-618", "fontsize" : 11.595187, "numinlets" : 2, "numoutlets" : 1 }
    } , { "box" : { "maxclass" : "jit.pwindow", "outlettype" : [ "", "" ], "patching_rect" : [ 740.0, 120.0, 367.0, 313.0 ], "id" : "obj-616", "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "jit.pwindow", "outlettype" : [ "", "" ], "patching_rect" : [ 229.0, 450.0, 230.0, 130.0 ], "id" : "obj-612", "numinlets" : 1, "presentation_rect" : [ 15.0, 15.0, 230.0, 130.0 ], "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "jit.pwindow", "outlettype" : [ "", "" ], "patching_rect" : [ 97.0, 450.0, 130.0, 130.0 ], "id" : "obj-107", "numinlets" : 1, "presentation_rect" : [ 15.0, 15.0, 130.0, 130.0 ], "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "newobj", "text" : "jit.submatrix @dim 230 130 @offset 360 288", "linecount" : 3, "outlettype" : [ "jit_matrix", "" ], "patching_rect" : [ 511.0, 274.0, 98.0, 48.0 ], "fontname" : "Arial", "id" : "obj-153", "fontsize" : 12.0, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "newobj", "text" : "jit.submatrix @dim 230 130 @offset 360 158", "linecount" : 3, "outlettype" : [ "jit_matrix", "" ], "patching_rect" : [ 512.0, 165.0, 102.0, 48.0 ], "fontname" : "Arial", "id" : "obj-152", "fontsize" : 12.0, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "newobj", "text" : "jit.submatrix @dim 230 130 @offset 130 288", "linecount" : 3, "outlettype" : [ "jit_matrix", "" ], "patching_rect" : [ 204.0, 274.0, 97.0, 48.0 ], "fontname" : "Arial", "id" : "obj-151", "fontsize" : 12.0, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "newobj", "text" : "jit.submatrix @dim 230 130 @offset 130 158", "linecount" : 3, "outlettype" : [ "jit_matrix", "" ], "patching_rect" : [ 200.0, 165.0, 102.0, 48.0 ], "fontname" : "Arial", "id" : "obj-147", "fontsize" : 12.0, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "newobj", "text" : "jit.submatrix @dim 130 130 @offset 590 288", "linecount" : 3, "outlettype" : [ "jit_matrix", "" ], "patching_rect" : [ 621.0, 274.0, 101.0, 48.0 ], "fontname" : "Arial", "id" : "obj-146", "fontsize" : 12.0, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "newobj", "text" : "jit.submatrix @dim 130 130 @offset 590 158", "linecount" : 3, "outlettype" : [ "jit_matrix", "" ], "patching_rect" : [ 622.0, 165.0, 98.0, 48.0 ], "fontname" : "Arial", "id" : "obj-145", "fontsize" : 12.0, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "newobj", "text" : "jit.submatrix @dim 130 130 @offset 0 288", "linecount" : 3, "outlettype" : [ "jit_matrix", "" ], "patching_rect" : [ 93.0, 274.0, 103.0, 48.0 ], "fontname" : "Arial", "id" : "obj-144", "fontsize" : 12.0, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "newobj", "text" : "jit.submatrix @dim 130 130 @offset 0 158", "linecount" : 3, "outlettype" : [ "jit_matrix", "" ], "patching_rect" : [ 91.0, 165.0, 96.0, 48.0 ], "fontname" : "Arial", "id" : "obj-143", "fontsize" : 12.0, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "message", "text" : "read", "outlettype" : [ "" ], "patching_rect" : [ 506.0, 66.0, 35.0, 18.0 ], "fontname" : "Arial", "id" : "obj-118", "fontsize" : 12.0, "numinlets" : 2, "numoutlets" : 1 }
    } , { "box" : { "maxclass" : "message", "text" : "stop", "outlettype" : [ "" ], "patching_rect" : [ 470.0, 66.0, 32.5, 18.0 ], "fontname" : "Arial", "id" : "obj-119", "fontsize" : 11.595187, "numinlets" : 2, "numoutlets" : 1 }
    } , { "box" : { "maxclass" : "message", "text" : "start", "outlettype" : [ "" ], "patching_rect" : [ 435.0, 67.0, 31.0, 18.0 ], "fontname" : "Arial", "id" : "obj-122", "fontsize" : 11.595187, "numinlets" : 2, "numoutlets" : 1 }
    } , { "box" : { "maxclass" : "toggle", "outlettype" : [ "int" ], "patching_rect" : [ 367.0, 36.0, 20.0, 20.0 ], "id" : "obj-125", "numinlets" : 1, "numoutlets" : 1 }
    } , { "box" : { "maxclass" : "newobj", "text" : "qmetro 20", "outlettype" : [ "bang" ], "patching_rect" : [ 367.0, 65.0, 63.0, 20.0 ], "fontname" : "Arial", "id" : "obj-126", "fontsize" : 11.595187, "numinlets" : 2, "numoutlets" : 1 }
    } , { "box" : { "maxclass" : "newobj", "text" : "jit.qt.movie @adapt 1", "outlettype" : [ "jit_matrix", "" ], "patching_rect" : [ 367.0, 94.0, 120.0, 20.0 ], "fontname" : "Arial", "id" : "obj-141", "fontsize" : 11.595187, "numinlets" : 1, "numoutlets" : 2 }
    } , { "box" : { "maxclass" : "panel", "patching_rect" : [ 359.0, 30.0, 193.0, 101.0 ], "id" : "obj-142", "bgcolor" : [ 0.945098, 0.913725, 0.407843, 1.0 ], "numinlets" : 1, "numoutlets" : 0 }
    } ], "lines" : [ { "patchline" : { "source" : [ "obj-125", 0 ], "destination" : [ "obj-126", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-143", 0 ], "destination" : [ "obj-107", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-147", 0 ], "destination" : [ "obj-612", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-617", 0 ], "destination" : [ "obj-618", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-144", 0 ], "destination" : [ "obj-621", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-151", 0 ], "destination" : [ "obj-624", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-153", 0 ], "destination" : [ "obj-623", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-146", 0 ], "destination" : [ "obj-626", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-145", 0 ], "destination" : [ "obj-622", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-152", 0 ], "destination" : [ "obj-625", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-118", 0 ], "destination" : [ "obj-141", 0 ], "hidden" : 0, "midpoints" : [ 515.5, 91.0, 376.5, 91.0 ] }
    } , { "patchline" : { "source" : [ "obj-119", 0 ], "destination" : [ "obj-141", 0 ], "hidden" : 0, "midpoints" : [ 479.5, 90.0, 376.5, 90.0 ] }
    } , { "patchline" : { "source" : [ "obj-122", 0 ], "destination" : [ "obj-141", 0 ], "hidden" : 0, "midpoints" : [ 444.5, 91.0, 376.5, 91.0 ] }
    } , { "patchline" : { "source" : [ "obj-126", 0 ], "destination" : [ "obj-141", 0 ], "hidden" : 0, "midpoints" : [ 376.5, 92.0, 376.5, 92.0 ] }
    } , { "patchline" : { "source" : [ "obj-618", 0 ], "destination" : [ "obj-141", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-141", 0 ], "destination" : [ "obj-144", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-141", 0 ], "destination" : [ "obj-143", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-141", 0 ], "destination" : [ "obj-151", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-141", 0 ], "destination" : [ "obj-147", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-141", 0 ], "destination" : [ "obj-152", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-141", 0 ], "destination" : [ "obj-153", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-141", 0 ], "destination" : [ "obj-145", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-141", 0 ], "destination" : [ "obj-146", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-141", 0 ], "destination" : [ "obj-619", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-143", 0 ], "destination" : [ "obj-627", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-152", 0 ], "destination" : [ "obj-628", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } , { "patchline" : { "source" : [ "obj-141", 0 ], "destination" : [ "obj-616", 0 ], "hidden" : 0, "midpoints" : [ ] }
    } ] }
    }

    • Mar 19 2009 | 7:52 am
      Hello Jagja,
      You must tell your object what native dim you want it. By default [jit.qt.movie] dims are 320x240. So, here you need [jit.qt.movie @dim 720 576 ] for example.
      --