CONTROL BY HTML DESCRIPTION
Image display, camera operation, and alarm image display can be effected on the WWW browser by means of commands described in the HTML (Hyper Text
Syntax: http://<IP address >/<CGI function>?<Parameter>=<value> [&<Parameter> = <value>...]
■Image Display
●CGI function for image display
CGI item | URL | Parameter name | Parameter | Description |
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Pull mode | CH | To get a frame of a new image. | ||
image get |
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| Fixed Input, Random Input mode: |
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| Ignored (or can be omitted) |
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| Multi Input mode: Essential |
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Push mode | CH | Push mode image get command for Netscape | ||
image get |
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| Fixed Input, Random Input mode: Ignored (or |
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| can be omitted) |
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| Multi Input mode: Essential |
Channel No. | CH | Channel for converting %c: Essential | ||
conversion |
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| FILE | File name | Name of files to be converted: Essential | |
(See page 79.) |
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●HTML Sample File [mainview1.html]
<HTML>
<HEAD>
</HEAD>
<BODY BGCOLOR=”#FFFFCC”> <CENTER>
<SCRIPT LANGUAGE=”JavaScript”> var myDate = new Date();
var tmpImg = new Image(%W,%H); width=%W
height=%H
function drawcamera() { document.CamImg.src=this.src;
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function loadcamera() { |
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myDate = new Date(); |
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tmpImg.src = |
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tmpImg.onload = drawcamera; |
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tmpImg.onerror= drawcamera; |
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} |
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document.write(“<IMG | NAME=CamImg |
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onLoad=\”TimerID=setTimeout(‘loadcamera()’,%i);\” | onError=\”TimerID=setTimeout(‘loadcamera()’,%i);\” |
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WIDTH=”+width+” HEIGHT=”+height+ “ VSPACE=5></A>”); |
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</SCRIPT> |
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</CENTER> |
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</BODY> |
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</HTML> |
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zThis is a function to call new images by means of JavaScript.
xThis is a time interval (msec) to be converted by %i, requesting a new image in pull mode (see page 79). The page num- ber of the argument is added for nullifying the cache.
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