AsposePSGetBoundingBox

AsposePSGetBoundingBox function

Reads EPS file and extracts bounding box of EPS image from %%BoundingBox comment or bounds for default page size (0, 0, 595, 842) if it doesn’t exist.

function AsposePSGetBoundingBox(
    fileBlob,
    fileName
)

Parameter	Type	Description
fileBlob	Blob object	Content of source file.
fileName	string	Source file name.

Return Value

JSON object

Field	Description
errorCode	code error (0 no error)
errorText	text error ("" no error)
bbox	the bounding box of the EPS image.

Examples

  var fPSGetBoundingBox = function (e) {
    const file_reader = new FileReader();
    file_reader.onload = (event) => {
      const json = AsposePSGetBoundingBox(event.target.result, e.target.files[0].name);
      if (json.errorCode == 0) {
        document.getElementById('output').textContent = "Bounds: " + json.bbox.toString();
      }
      else 
        document.getElementById('output').textContent = json.errorText;
    }
    file_reader.readAsArrayBuffer(e.target.files[0]);
  }

Web Worker example:

  /*Create Web Worker*/
  const AsposePageWebWorker = new Worker("AsposePageforJS.js");
  AsposePageWebWorker.onerror = evt => console.log(`Error from Web Worker: ${evt.message}`);
  AsposePageWebWorker.onmessage = evt => document.getElementById('output').textContent = 
    (evt.data == 'ready') ? 'library loaded!' :
      (evt.data.json.errorCode == 0) ? `Boundibg box: ${evt.data.json.bbox}` : `Error: ${evt.data.json.errorText}`;

  /*Event handler*/
  const fPSGetBoundingBox = e => {
    const file_reader = new FileReader();
    file_reader.onload = event => {
      AsposePageWebWorker.postMessage({ "operation": 'AsposePSGetBoundingBox', "params": [event.target.result, e.target.files[0].name] }, [event.target.result]);
    };
    file_reader.readAsArrayBuffer(e.target.files[0]);
  };

  }

See Also

• function AsposePSExtractText