Creating image without saving it

[gotti]

Hi,
i want to create an image out of a chart without saving it directly. My intention is to add it as an image to a pdf-file. I dont want to write it directly to a pdf because i want to handle the "positioning" somewhere else in the code.
Regards
Tobias

[Guest]

You want to hold the image in memory as a buffered image :

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bufferedImage = chart.createBufferedImage(width, height);

then when you want the image

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ChartUtilities.writeBufferedImageAsPNG(out, bufferedImage);

Hope this helps

Ian

[aaa]

You want to hold the image in memory as a buffered image :

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bufferedImage = chart.createBufferedImage(width, height);

then when you want the image

Code: Select all

ChartUtilities.writeBufferedImageAsPNG(out, bufferedImage);

Hope this helps

Ian

hi Ian

Some how i am also in similar case, but i dont want to write
but i wanted to show it in html ,<img> tag from the buffer
can i get help from you?

Regards
Vaaji

[david.gilbert]

Call response.getOutputStream() on the HttpServletResponse. Then do something like this:

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response.setContentType("image/png");
ChartUtilities.writeChartAsPNG(out, chart, 400, 300);

[aaa]

thank you dave!

Regards
Vaaji