如何通过q​​qmllistproperty显示数据库中的记录

时间:2019-05-10 09:40:42

标签: c++ qt qqmllistproperty

使用qqmllistproperty通过listview显示数据库中的记录

我正在尝试通过qqmllistproperty显示数据库中的记录,但它仅显示最后一条记录

   %Full trajectory of B

%Linkage dimensions

clear
r = 50;
l = 150;
xC = 80;
yC = 0;
n = 361; % Number of position calculations
fii = linspace(0,2*pi,n);
omega = 15;
[xA,yA] = pol2cart(fii,r);
d = xA + xC;

alpha = atan(yA./(xC-xA));

lx = l*cos(alpha);
ly = l*sin(alpha);

xB = xA + lx;
yB = yA + ly;

plot(xB,yB) %Plots the trajectory

title('Full trajectory of AB')

% Angular velocity of AB 

for ind = 1:n
omegaAB(ind) = (-(r^2-d*r*cos(fii))/(r^2 + d^2 - 2*d*r*cos(fii)))*omega;
end

figure(2)
plot(fii,omegaAB, 'linewidth', 2, 'color', 'red')
title('Angular velocity of AB')
ylabel('\omega_{AB} [1/s]')
xlabel('\phi [rad]')

有9条记录,我希望所有9条记录都应该出现在列表视图中,但是它在列表视图中显示了最后9条记录

0 个答案:

没有答案