Spread Extract as JPEG not show image on spread

Question

Hi Experts
I create Indesign Document(CS5.5) file on MAC OS using script, which contain text and images on spread.
My file is created sucessfully. Now I exterect spreads as image(JPEG) using script
#target indesign
var myDocument =app.activeDocument;
myDocument.exportFile(ExportFormat.JPG,File("/private/var/root/Desktop/1.jpg"),false)
with(app.jpegExportFormatPreferences)
exportingSpread=true;
First time when I start My MAC system it extract spread sucessfully with image data. If I exteract again then exteract image contain only text data and image data is not present.
If I restart my MAC system then same result(first time present second time not)
While on window there is no such problem .
How solve this problem ?
Thanks.

Answer 1

Before you have to export, set ruler orgin to spread orgin............
var myDocument = app.documents.item(0);
    //<fragment>
    with(myDocument.viewPreferences){
        //Measurement unit choices are:
        //* MeasurementUnits.picas
        //* MeasurementUnits.points
        //* MeasurementUnits.inches
        //* MeasurementUnits.inchesDecimal
        //* MeasurementUnits.millimeters
        //* MeasurementUnits.centimeters
        //* MeasurementUnits.ciceros
        //* MeasurementUnits.agates
        //* MeasurementUnits.custom
        //Set horizontal and vertical measurement units to points.
        horizontalMeasurementUnits = MeasurementUnits.points;
        verticalMeasurementUnits = MeasurementUnits.points;
//set ruler origin to page origin
rulerorigin = ruler origin.spread origin;