Object2VR - Image Sequence Pattern
From Garden Gnome Software
The image sequence pattern is simply a way for you to describe your file naming convention to Object2VR in order for it recognize your images as a sequence pattern. This description is written in one line of JavaScript which uses predefined variables based on column and row numbers:
- column - current column
- row - current row
- columns - selected number of columns
- rows - selected number of rows
There is also a helper function
- fill(<string>,<length>,<fill character>) - expands a string to a certain length
You can find a list of the other predefined objects in Trolltechs ECMAScript Reference.
Examples
Some useful examples of image name patterns. The round brackets around the variables are used to force a mathematical evaluation.
Single Row
The following examples are explained assuming 10 columns.
'image' + (column) + '.tif'
produces "image0.tif" to "image9.tif"
'image' + (column+1) + '.tif'
produces "image1.tif" to "image10.tif"
'image' + fill(column+1,4,'0') + '.tif'
produces "image0001.tif" to "image0010.tif"
Multi Row
The following example are explained asuming 10 columns and 5 rows.
'out_'+ (row) + '_' + (column) + '.tif'
produces "out_0_0.tif","out_0_1.tif",.. to "out_4_9.tif"
'out_'+ ((rows-1)-row) + '_' + (column) + '.tif'
produces "out_4_0.tif","out_4_1.tif",.. to "out_0_9.tif"
'DSC_' + fill(column+row*colums+234,4,'0') + '.JPG'
produces "DSC_0234.JPG", "DSC_0235.JPG",... to "DSC_0283.JPG". This is useful if you shot a multi row object movie in one go with your digital camera and the first image is "DSC_0234.JPG".
Advanced Examples
You can also define functions or arrays within the pattern line. Only the evaluation of the last statement defines the result. If you have for example several rows with different names you could use something like this:
rowname=Array('red','blue','green','yellow','pink'); rowname[row] + '_' + column + '.jpg'
This produces the file names "red_0.jpg", "red_1.jpg", .... "red_9.jpg","blue_0.jpg",.... "pink_9.jpg"