inaciose's profile - activity

HI

Some time ago I have the global path full display. From the robot place to the goal.

You may see the green line in the following video.

https://www.youtube.com/watch?v=Xsv1R...

Now, i can only see the global path inside the dinamic window area.

You may see the line in the following video It is the blue line (i changed from green to blue, beacuse local path is green)

https://www.youtube.com/watch?v=Ue9GB...

I cant remember what I have done to do this change. May anyone help me to restore the full global path display.

Thanks

Yes there is. It is documented in the following page. https://aibegins.net/2020/11/22/give-your-next-robot-3d-vision-ki

@miura how can i mark this answer as the best answer?

Solved. Thanks.

global path display is shorter than use to be HI Some time ago I have the global path full display. From the robot plac

Your arg2 is bad. You should not use the end effector, but the link in the arm that connect to the end effector. If shou

Your arg2 is bad. You should not use the end effector link. If should you use: move_group.set_joint_value_target(pose_go

@edote I also reach the problem of "Allow Aprox IK solutions" in a python program. But i belive there is something wrong

@edote I also reach the problem of "Allow Aprox IK solutions" in a python program. But i belive there is something wrong

@edote I also reach the problem of "Allow Aprox IK solutions" in a python program. But i belive there is something wrong

@edote I also reach the problem of "Allow Aprox IK solutions" in a python program. But i belive there is something wrong

Hi!

Hi have a problem converting from std_msg::string message with utf-8 encoded chars. If the string is hardcoded it works good, using this sample block of code inside the ros node:

    iconv_t cd = iconv_open("UTF-8", "ISO_8859-1");
if (cd == (iconv_t) -1) {
    perror("iconv_open failed!");
    //return 1;
}

char charstr[] = "ent\xE3o conta-me l\xE1 como \xE9 que te chamas";
char *in_buf = &charstr[0];
size_t in_left = sizeof(charstr) - 1;

printf("hardcode string: %d\n", strlen(charstr));
for(int i = 0; i < strlen(charstr); i++) {
    printf("(%d %c) ", charstr[i], charstr[i]);
}
printf("\n");

char output[255];
char *out_buf = &output[0];
size_t out_left = sizeof(output) - 1;

do {
    if (iconv(cd, &in_buf, &in_left, &out_buf, &out_left) == (size_t) -1) {
        perror("iconv failed!");
        //return 1;
    }
} while (in_left > 0 && out_left > 0);
*out_buf = 0;

printf("%s -> %s\n", charstr, output);

it prints (and its ok):

ent�o conta-me l� como � que te chamas -> então conta-me lá como é que te chamas

If i try to feed the conversion with the same string from a subscribed topic message (I manually publish exactly the same string), with the same code but only adapted to use the topic message, as bellow.

std::copy( data.begin(), data.end(), charstr );
charstr[data.length()] = 0;

in_buf = &charstr[0];
in_left = sizeof(charstr) - 1;

out_buf = &output[0];
out_left = sizeof(output) - 1;

do {
    if (iconv(cd, &in_buf, &in_left, &out_buf, &out_left) == (size_t) -1) {
        perror("iconv failed!");
        //return 1;
    }
} while (in_left > 0 && out_left > 0);
*out_buf = 0;

printf("%s -> %s\n", charstr, output);

its print (wrong because not converted): ent\xE3o conta-me l\xE1 como \xE9 que te chamas -> ent\xE3o conta-me l\xE1 como \xE9 que

So... the code is the same, the input supposedly the same.

How do you handle the utf-8 strings in message topics on c++ nodes?

A code sample is gold!

tks

Check the firmware for the mechaduino and niryo one. https://github.com/jcchurch13/Mechaduino-Firmware https://github.

I belive that this answer may help you! https://answers.ros.org/question/228190/moveit-end-effector-positioning/

I belive that this answer may help you!

diff_drive_controller hard to turning right or left Im trying to do a 2wd robot with ros control and manage to build the

@makemelive Tankyou for share. Nice robot. :) I will take some time to check your repository.

Please see this Answer for a full serial interface to ros controllers on Arduino https://answers.ros.org/question/26350

Two solutions Microcontroler running roserial subscribe to the /joint_states and drive the servos Solution one Sample

After spent some more time around this I found that my test procedure was wrong. Long story. I print all the bytes in

convert utf-8 topic messages to ISO_8859-1 Hi! Hi have a problem converting from std_msg::string message with utf-8 en