你好,我有一个功能和一个问题:)
var quotesArr = ["Quote 1", "Quote 2", "Quote 3"];
var authorsArr = ["Author 1", "Author 2", "Author 3"];
var quoteMeetsAuthor = [];
var quotesAndAuthors = [];
function combineArrays(quotes,authors) {
if (quotes.length != authors.length) {
console.log("Danger Will Robinson!");
return "Danger Will Robinson!";
}
for (i=0; i<quotes.length; i++) {
quoteMeetsAuthor.push(quotes[i]);
quoteMeetsAuthor.push(authors[i]);
quotesAndAuthors.push(quoteMeetsAuthor);
quoteMeetsAuthor = [];
}
console.log(quotesAndAuthors);
return quotesAndAuthors;
}
combineArrays(quotesArr, authorsArr);
我应该使用这个函数(transform_vertices)只是ONCE旋转,翻译,但我怎么能只使用一次?我的代码是
function[result] = transform_vertices(v, m)
for i = 1 : size(v,2)
v(:,i) = m * v(:,i);
end
result = v;
end
答案 0 :(得分:0)
我认为quad
是一组坐标?您的transform_vertices
函数只会执行左矩阵乘法。如果你这样做,你会得到相同的结果:
image1_vertices = transform_vertices(quad, mtranslate(-2,0)*mrotate(30));
事实上,你甚至不需要使用这个功能,你可以这样做:
image1_vertices = mtranslate(-2,0) * mrotate(30) * quad;