load row_c
load val
I think this is what you're going for:
r_add = [];
r = height(row_c);
r_new = row_c;
for k = 1:numel(val)
r_new(:,2) = repmat(r_new(1,2)-val(1,k), r, 1);
r_add = [r_add; r_new];
end
figure
plot(row_c(:,1),row_c(:,2),'g.','Markersize',15);
hold on
plot(r_add(:,1),r_add(:,2),'r.','Markersize',15);
hold off
axis equal
set(gca, 'YDir','reverse')
xlim([-90 -85])
ylim([104 108])
An alternative is:
[x,y] = meshgrid(row_c(:,1), row_c(1,2)-[0 cumsum(val)]);
figure
plot(x(1,:),y(1,:),'g.','Markersize',15);
hold on
plot(reshape(x(2:end,:),[],1),reshape(y(2:end,:),[],1),'r.','Markersize',15);
hold off
axis equal
set(gca, 'YDir','reverse')
xlim([-90 -85])
ylim([104 108])
