[Здесь и далее 4 фрагмента, нужно только прочитать два первых.Однако, скопировав все это, вы сможете запустить то, что я вижу, хотя скриншоты предоставляются в конце .]
Привет, запустив этот main.m :
%To see if plotting a tick after setting camlight headlight will leads to
%its background becoming gray or not
%clear all
figure
arrow = arrow3D([0 0 0], [1 1 1], 'r', 0.8, 0.2, 1.5);
set(arrow, 'EdgeColor', 'interp', 'FaceColor', 'interp');
%camlight headlight %might be interesting to uncomment this line
pause(5)
surfaceHandle = rotateAxisTicks('lol','r',10,-0.3,0.5,0.5,1,1,1,0);
pause(5)
camlight headlight
%material(surfaceHandle,'default') %doesn't work
%surfaceHandle1.FaceLighting = 'none' %doesn't work
, который использует эту функцию rotateAxisTicks.m
function surfaceHandle = rotateAxisTicks(str,color,fontsize,zmax,graduSpace,boxHeight,perc,labelNumber,axnumber,thetaInput)
%/5952468/matlab-kak-postroit-tekst-v-3d
%zmax : give it a negative value to not overlap the axis
%graduSpace : space between each graduation, within the projected on [0,1] axis if axis = x||y, OR local (not yet projected on x,y) axis !!
%boxHeight : width of the boxes depend on how much the axis graduations are refined, so height shouldn't depend on graduSpace
%perc : if perc = 1 (100%), then the labels are all sticked together with no space inbetween
%labelNumber : the first tick to be displayed is actually associated to the second graduation (0 can't get several labels)
%axnumber : out of nbParams, 1 for x, 2 for y, then, from closest to x, to closest to y : 3 to nbParams.
%thetaInput : (angle around z, from x to the axis) has to be in degree
%% Seems like there is no way to get rid of the black contouring...
hFigure = figure(1000);
set(hFigure,'Color', 'w', ... % Create a figure window
'MenuBar', 'none', ...
'ToolBar', 'none');
hText = uicontrol('Parent', hFigure, ... % Create a text object
'Style', 'text', ...
'String', str, ...
'BackgroundColor', 'w', ...
'ForegroundColor', color, ...
'FontSize', fontsize, ...
'FontWeight', 'normal');
set([hText hFigure], 'Pos', get(hText, 'Extent')); %# Adjust the sizes of the
%# text and figure
imageData = getframe(hFigure); %# Save the figure as an image frame
delete(hFigure);
textImage = imageData.cdata; %# Get the RGB image of the text
%% MAKE THE X,Y,Z (text) REVERSE DEPENDING ON AZIMUT VALUE (launch a fig and see on the bottom in real time the azimut value)
% X or Y or Z(1,1) = _______
% * |
% | |
% |_______|
% X or Y or Z(1,2) = _______
% | *
% | |
% |_______|
% X or Y or Z(2,1) = _______
% | |
% | |
% x_______|
% X or Y or Z(2,2) = _______
% | |
% | |
% |_______x
if axnumber == 2 %axis = y
X = [0 0; 0 0];
Y = [0 perc*graduSpace; 0 perc*graduSpace] + labelNumber*graduSpace - perc*graduSpace/2;
%(graduSpace/2)/2 to center under the graduation, (1-perc)/2) to
%additionally shift a bit so that the perc% of graduSpace stay centered
%under the graduation
else %I assume axis = x, that I might later rotate if it's not actually x
X = [0 perc*graduSpace; 0 perc*graduSpace] + labelNumber*graduSpace - perc*graduSpace/2; %+labelNumber*((graduSpace/2)+((1-perc)/2)*graduSpace)
Y = [0 0; 0 0];
end
Z = [zmax zmax; zmax-boxHeight zmax-boxHeight];
surfaceHandle = surf(X, Y, Z, 'FaceColor', 'texturemap', 'CData', textImage);
if axnumber > 2
rotate(surfaceHandle, [0 0 1], thetaInput,[0 0 0]);
end
end
, а также эту функцию arrow3D.m :
function arrowHandle = arrow3D(pos, deltaValues, colorCode, stemRatio, cylRad, radRatioCone)
% arrowHandle = arrow3D(pos, deltaValues, colorCode, stemRatio) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Used to plot a single 3D arrow with a cylindrical stem and cone arrowhead
% pos = [X,Y,Z] - spatial location of the starting point of the arrow (end of stem)
% deltaValues = [QX,QY,QZ] - delta parameters denoting the magnitude of the arrow along the x,y,z-axes (relative to 'pos')
% colorCode - Color parameters as per the 'surf' command. For example, 'r', 'red', [1 0 0] are all examples of a red-colored arrow
% stemRatio - The ratio of the length of the stem in proportion to the arrowhead. For example, a call of:
% arrow3D([0,0,0], [100,0,0] , 'r', 0.82) will produce a red arrow of magnitude 100, with the arrowstem spanning a distance
% of 82 (note 0.82 ratio of length 100) while the arrowhead (cone) spans 18.
%
% Example:
% arrow3D([0,0,0], [4,3,7]); %---- arrow with default parameters
% axis equal;
%
% Author: Shawn Arseneau
% Created: September 14, 2006
% Updated: September 18, 2006
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
if nargin<2 || nargin>6
error('Incorrect number of inputs to arrow3D');
end
if numel(pos)~=3 || numel(deltaValues)~=3
error('pos and/or deltaValues is incorrect dimensions (should be three)');
end
if nargin<3
colorCode = 'interp';
end
if nargin<4
stemRatio = 0.75;
end
X = pos(1); %---- with this notation, there is no need to transpose if the user has chosen a row vs col vector
Y = pos(2);
Z = pos(3);
[sphi, stheta, srho] = cart2sph(deltaValues(1), deltaValues(2), deltaValues(3));
%******************************************* CYLINDER == STEM *********************************************
%cylinderRadius = 0.05*srho;
cylinderRadius = cylRad;
cylinderLength = srho*stemRatio;
[CX,CY,CZ] = cylinder(cylinderRadius);
CZ = CZ.*cylinderLength; %---- lengthen
%----- ROTATE CYLINDER
[row, col] = size(CX); %---- initial rotation to coincide with X-axis
newEll = rotatePoints([0 0 -1], [CX(:), CY(:), CZ(:)]); %CX(:) actually reshape the 2xN matrices in a 2N vert vector, by vertically concatenating each column
CX = reshape(newEll(:,1), row, col);
CY = reshape(newEll(:,2), row, col);
CZ = reshape(newEll(:,3), row, col);
[row, col] = size(CX);
newEll = rotatePoints(deltaValues, [CX(:), CY(:), CZ(:)]);
stemX = reshape(newEll(:,1), row, col);
stemY = reshape(newEll(:,2), row, col);
stemZ = reshape(newEll(:,3), row, col);
%----- TRANSLATE CYLINDER
stemX = stemX + X;
stemY = stemY + Y;
stemZ = stemZ + Z;
%******************************************* CONE == ARROWHEAD *********************************************
coneLength = srho*(1-stemRatio);
coneRadius = cylinderRadius*radRatioCone;
incr = 100; %---- Steps of cone increments
coneincr = coneRadius/incr;
[coneX, coneY, coneZ] = cylinder(cylinderRadius*2:-coneincr:0); %---------- CONE
coneZ = coneZ.*coneLength;
%----- ROTATE CONE
[row, col] = size(coneX);
newEll = rotatePoints([0 0 -1], [coneX(:), coneY(:), coneZ(:)]);
coneX = reshape(newEll(:,1), row, col);
coneY = reshape(newEll(:,2), row, col);
coneZ = reshape(newEll(:,3), row, col);
newEll = rotatePoints(deltaValues, [coneX(:), coneY(:), coneZ(:)]);
headX = reshape(newEll(:,1), row, col);
headY = reshape(newEll(:,2), row, col);
headZ = reshape(newEll(:,3), row, col);
%---- TRANSLATE CONE
V = [0, 0, srho*stemRatio]; %---- centerline for cylinder: the multiplier is to set the cone 'on the rim' of the cylinder
Vp = rotatePoints([0 0 -1], V);
Vp = rotatePoints(deltaValues, Vp);
headX = headX + Vp(1) + X;
headY = headY + Vp(2) + Y;
headZ = headZ + Vp(3) + Z;
%************************************************************************************************************
hStem = surf(stemX, stemY, stemZ, 'FaceColor', colorCode, 'EdgeColor', 'none');
hold on
hBottStem = fill3(stemX(1,:),stemY(1,:),stemZ(1,:), colorCode, 'EdgeColor', 'none');
hold on
hHead = surf(headX, headY, headZ, 'FaceColor', colorCode, 'EdgeColor', 'none');
hold on
hBottCone = fill3(headX(1,:),headY(1,:),headZ(1,:), colorCode, 'EdgeColor', 'none');
if nargout==1
arrowHandle = [hStem, hBottStem, hHead, hBottCone];
end
, который сам использует эту функцию rotatePoints.m :
function rotatedData = rotatePoints(alignmentVector, originalData)
% rotatedData = rotatePoints(alignmentVector, originalData) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Rotate the 'originalData' in the form of Nx2 or Nx3 about the origin by aligning the x-axis with the alignment vector
%
% Rdata = rotatePoints([1,2,-1], [Xpts(:), Ypts(:), Zpts(:)]) - rotate the (X,Y,Z)pts in 3D with respect to the vector [1,2,-1]
%
% Rotating using spherical components can be done by first converting using [dX,dY,dZ] = cart2sph(theta, phi, rho); alignmentVector = [dX,dY,dZ];
%
% Example:
% %% Rotate the point [3,4,-7] with respect to the following:
% %%%% Original associated vector is always [1,0,0]
% %%%% Calculate the appropriate rotation requested with respect to the x-axis. For example, if only a rotation about the z-axis is
% %%%% sought, alignmentVector = [2,1,0] %% Note that the z-component is zero
% rotData = rotatePoints(alignmentVector, [3,4,-7]);
%
% Author: Shawn Arseneau
% Created: Feb.2, 2006
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
alignmentDim = numel(alignmentVector); %number of elements in a matrix
DOF = size(originalData,2); %---- DOF = Degrees of Freedom (i.e. 2 for two dimensional and 3 for three dimensional data)
if alignmentDim~=DOF
error('Alignment vector does not agree with originalData dimensions');
end
if DOF<2 || DOF>3
error('rotatePoints only does rotation in two or three dimensions');
end
if DOF==2 % 2D rotation...
[rad_theta, rho] = cart2pol(alignmentVector(1), alignmentVector(2));
deg_theta = -1 * rad_theta * (180/pi);
ctheta = cosd(deg_theta); stheta = sind(deg_theta);
Rmatrix = [ctheta, -1.*stheta;...
stheta, ctheta];
rotatedData = originalData*Rmatrix;
%assumption: rotate all the datas from the original base to the
%base where the original x becomes alignmentVector
else % 3D rotation...
[rad_theta, rad_phi, rho] = cart2sph(alignmentVector(1), alignmentVector(2), alignmentVector(3));
rad_theta = rad_theta * -1;
deg_theta = rad_theta * (180/pi);
deg_phi = rad_phi * (180/pi);
ctheta = cosd(deg_theta); stheta = sind(deg_theta); %MM : is it more accurate??
Rz = [ctheta, -1.*stheta, 0;...
stheta, ctheta, 0;...
0, 0, 1]; %% First rotate as per theta around the Z axis
rotatedData = originalData*Rz;
[rotX, rotY, rotZ] = sph2cart(-1* (rad_theta+(pi/2)), 0, 1); %% Second rotation corresponding to phi
%assuming alignmentVector is the x for the new base, then the
%hereabove argument corresponds to the y (z inversed)
%the hereabove output = newX(in base 0) vectorial product -z(in base0)
rotationAxis = [rotX, rotY, rotZ];
u = rotationAxis(:)/norm(rotationAxis); %% Code extract from rotate.m from MATLAB
cosPhi = cosd(deg_phi);
sinPhi = sind(deg_phi);
invCosPhi = 1 - cosPhi;
x = u(1);
y = u(2);
z = u(3);
Rmatrix = [cosPhi+x^2*invCosPhi x*y*invCosPhi-z*sinPhi x*z*invCosPhi+y*sinPhi; ...
x*y*invCosPhi+z*sinPhi cosPhi+y^2*invCosPhi y*z*invCosPhi-x*sinPhi; ...
x*z*invCosPhi-y*sinPhi y*z*invCosPhi+x*sinPhi cosPhi+z^2*invCosPhi]';
rotatedData = rotatedData*Rmatrix;
end
Я получаю: 
, в то время как я хотел бы сохранить оба промежуточных графика, содержащие стрелку interp: 
и текст на ярком белом фоне: 
Таким образом, на самом деле есть два вопроса:
1) Почему при вызове моего текстового тика отключается эффект взаимодействия (цвет меняется от синего до желтого))?
2) Как я могу сохранить лампу, не освещая мой флажок?(т. е. сохраняя белый фон)
По сути, нужно смотреть только на два первых фрагмента, а два последующих бесполезны для моей проблемы.
Благодарю васмного!