I did this by first increasing the canvas size to make room for the newly stretched image.

我首先增加画布的大小，使其拥有更多的空间来拉伸图片。

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I will be stretching this image, so I need to increase the canvas size to make room for the larger image and avoid having the line work go off of the page.

我将要拉伸这张图片，所以我需要增加画布的尺寸，可以允许更大的图片，并且避免内容超出页面。

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Then the image tiles splicing part presents the process of splicing image tiles through canvas size computing, image tiles index computing and image payload composing.

然后在图像片拼接部分，给出了通过画布尺寸计算、图像片索引计算和负载合成操作拼接图像片的流程；

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When works of art are so large and heavy that they must be moved by forklift truck, when walls and floors must be reinforced to install them, when canvas size is room size, display is a serious problem.

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User-defined Touch Strips, conveniently placed on the back of the display can also be used for such functions as zoom, scroll, brush size adjustment and canvas rotation.

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For example, the iPad offers a beautiful canvas for reading books, but the size and heft discourage the traditional curling-up with a page-turner.

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