| | | fd = mopen(filename,'rb'); bmpftype = mget(1,'usl',fd); //Bmp fileheader Type should be 0x424d bmpfsize = mget(1,'ll',fd); // Bmp size information bmpfres = mget(2,'usl',fd); // Reserved information bmpfoff = mget(1,'ll',fd); // Off bits bmpisize = mget(1,'ull',fd); // Bmp information header size bmpwidth = mget(1,'ll',fd); // bmp width bmpheight = mget(1,'ll',fd); // bmp height bmpiplane = mget(1,'usl',fd); // Bmp palette information bmpibits = mget(1,'usl',fd); // bmp bits of perx piexl bmpicompress = mget(1,'ull',fd); //bmp compress information bmpisizeimage = mget(1,'ull',fd); //Bmp image size information bmpixy = mget(2,'ll',fd); // X Y pers meter bmpicolors = mget(2,'ull',fd); // Color used and zoom if bmpibits == 8 rgbs = []; for i = 1:256 row = []; row = mget(4,'cl',fd); rgbs = [rgbs;row]; end end printf("=========================================/n"); printf("=============Bmp Basic Information=======/n"); printf("*******************************************/n"); printf("BMP file size ==> "+string(bmpfsize)+"/n"); printf("BMP fileoffsize=> "+string(bmpfoff)+"/n"); printf(" BMP Width ==> "+string(bmpwidth)+"/n"); printf(" BMP Height ==> "+string(bmpheight)+"/n"); printf("BMP bits/pixel==> "+string(bmpibits)+"/n"); printf("BMP imagesize ==> "+string(bmpisizeimage)+"/n"); printf("BMP color used => "+string(bmpicolors(1))+"/n"); mclose(fd); if bmpibits == 8 slicesize = bmpwidth * bmpheight; printf("Num of pixels =>%d/n",slicesize); D =[]; D = getdata(filename,bmpfoff,bmpwidth,bmpheight); //Data = mgeti(slicesize,'ucl',fd); drawgrayl(D,bmpwidth,bmpheight); printf("Scan %d pixel data/n",slicesize); end endfunction 利用线元绘制三维模型 function volrender1() clear xbasc() //3d reconstruction with the edge table test printf("Rendering with the 4-elements array sets/n"); printf("==========================================/n"); title = "Enter the dictionary stored with volume data and the number of the files"; Labels = ["Scidat Dir: "; ... "Num of file:"] vector = x_mdialog(title,Labels,['';'1']); num = eval(vector(2)); filename = vector(1);//input("Enter the Dictionary hold the 4-elements array sets:/n");//filename = 'c://edge'; //disp(string(num)); //disp(filename); for i=1:num u = file('open',filename+'/'+string(i)+'.dat','old'); //disp(filename+string(i)+'.dat'); table =read(u,-1,4); [n m] =size(table); x1=table(:,1); x2=table(:,2); x3=table(:,3); a=ones(x3); b = (a+i)/2; plot3d3(x1,x2,x3+b); file('close',u); //close(u); end endfunction 基于线元结构的面绘制效果 基于三角片的面绘制 for i=1:zstep:num-zstep df1 = df + '/'+string(i)+'.dat'; | |