To get a chart, use the command report/get_result_chart:

svc=report/get_result_chart&params={"attachmentIndex":<uint>,
				    "action":<uint>,
				    "width":<uint>,
				    "height":<uint>,
				    "autoScaleY":<uint>,
				    "pixelFrom":<int>,
				    "pixelTo":<int>,
				    "flags":<uint>}

 Сurrent request can’t be executed simultaneously with following requests:

• report/exec_report,
• report/export_result,
• report/get_result_map,
• messages/load_interval,
• render/create_messages_layer,
• unit/get_trips,
• resource/get_driver_bindings,
• resource/get_trailer_bindings,
• all requests from chapter Export and import ,
• account/get_account_history.

 You can find an example of this request in the sample Reports.

Chart flags:

Returns image in PNG format.